List of the Paleozoic life of New York (state)

This list of the Paleozoic life of New York contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of New York and are between 541 and 252.17 million years of age.

A
  • †Acanthoclema
    • †Acanthoclema aspera
    • †Acanthoclema asperum
  • †Acanthoclymenia
    • †Acanthoclymenia genundewa
    • †Acanthoclymenia neapolitana
  • †Acanthocrinus
    • †Acanthocrinus spinosus
  • Fossilized teeth (W) of the Cambrian–Early Ordovician conodont Acanthodus
    †Acanthodus
    • †Acanthodus uncinatus
  • †Acanthoparypha – tentative report
  • †Acanthoscapha
  • †Achatella
    • †Achatella achates
  • †Acheilops
    • †Acheilops masonensis
  • †Acidiphorus
    • †Acidiphorus whittingtoni
  • Illustration of fossils of the Cambrian trilobite Acidiscus
    †Acidiscus
  • †Acimetopus
  • †Acinophyllum
  • †Acinopteria
  • †Aclistocrinus
    • †Aclistocrinus capistratus
  • †Acodus
    • †Acodus similaris
  • †Acrogenia
  • †Acrospirifer
    • †Acrospirifer duodenaria
    • †Acrospirifer macrothyris
  • †Acrothele
  • †Acrotreta
  • †Actinoceras
    • †Actinoceras ruedemanni
    • †Actinoceras ruedemonni
    • †Actinoceras vertebratum
  • †Actinodesma
    • †Actinodesma erectum
  • †Actinophyllum
  • †Actinopterella
  • †Actinopteria
    • †Actinopteria boydi
    • †Actinopteria boydii
    • †Actinopteria decussata
    • †Actinopteria muricatus
    • †Actinopteria recumbant
    • †Actinopteria subdessucata
  • †Actinostromella
    • †Actinostromella vaiverensis
  • †Actinoxylon
    • †Actinoxylon banksii
  • †Aculeatarbus – type locality for genus
    • †Aculeatarbus depressus – type locality for species
  • Fossil of the Silurian-Early Devonian eurypterid ("sea scorpion") Acutiramus
    †Acutiramus
    • †Acutiramus floweri – type locality for species
    • †Acutiramus macrophthalmus
  • †Adelphobolbina
    • †Adelphobolbina medialis – type locality for species
  • †Aechmina
  • †Aechminaria – tentative report
  • †Aesopomum
  • †Aglaeoglypta
    • †Aglaeoglypta koeneni
    • †Aglaeoglypta maera
  • †Aglaoglypta
    • †Aglaoglypta koeneni – type locality for species
    • †Aglaoglypta maera
  • †Agoniatites
    • †Agoniatites discoideus
    • †Agoniatites expansus
    • †Agoniatites nodiferus
  • Fossil of the Cambrian trilobite Agraulos
    †Agraulos
    • †Agraulos saratogensis
  • †Aknisophyllum – type locality for genus
    • †Aknisophyllum consuitum – type locality for species
  • †Alaionema
    • †Alaionema crenulatum
  • †Alanella
  • †Allanella
    • †Allanella tullia
    • †Allanella tullius
  • †Allenella
    • †Allenella tullia
    • †Allenella tullius
  • †Alleynia
    • †Alleynia americana
  • †Allotrioceras
    • †Allotrioceras bifurcatum
  • †Allumettoceras
    • †Allumettoceras giganteum
  • †Ambocoelia
    • †Ambocoelia gregaria
    • †Ambocoelia praeumbonata
    • †Ambocoelia umbonata
  • †Ambonychia
    • †Ambonychia praecursa
  • †Ambonychiopsis
    • †Ambonychiopsis curvata
  • †Amorphognathus
    • †Amorphognathus tvaerensis
  • †Amphicoelia
    • †Amphicoelia orbiculoides
    • †Amphicoelia ordiculoides
  • †Amphidoxodendron
    • †Amphidoxodendron dichotomum
  • †Amphigenia
    • †Amphigenia curta
    • †Amphigenia elongata
  • †Amphilicas
    • †Amphilicas cornutus
  • †Amphilichas
    • †Amphilichas minganensis
  • †Amphiocoelia
  • †Amphissella
    • †Amphissella papillosa – type locality for species
  • †Amphistrophia
    • †Amphistrophia striata
  • †Amphizona
    • †Amphizona asceta
  • †Amplexiphyllum
    • †Amplexiphyllum hamiltoniae
  • †Amplexograptus
  • Fossils of the Ordovician-Permian bryozoan Amplexopora
    †Amplexopora
    • †Amplexopora minnesotensis
    • †Amplexopora winchelli
  • †Amplexus
    • †Amplexus hamiltoniae
  • †Analox
  • †Anamesocrinus
    • †Anamesocrinus lutheri
    • †Anamesocrinus spinobrachiatus – type locality for species
  • †Anastrophia
    • †Anastrophia brevirostris
    • †Anastrophia interplicata
    • †Anastrophia verneuili
  • †Anazyga
    • †Anazyga recurvirostra
  • †Anchiopsis
    • †Anchiopsis anchiops
  • †Ancillotoechia
    • †Ancillotoechia obtusiplicata
  • †Ancistrorhyncha
  • †Ancyrocrinus
    • †Ancyrocrinus bulbosus
  • †Aneurophyton
    • †Aneurophyton germanicum
    • †Aneurophyton hallii
    • †Aneurophyton rachides
  • †Aneurospora
    • †Aneurospora heterodontus – or unidentified comparable form
    • †Aneurospora semizonalis
  • †Anisotechnophorus
    • †Anisotechnophorus nuculitiformis – type locality for species
  • †Annoceras
    • †Annoceras costatum
    • †Annoceras multicameratum
  • †Anomalocystites
    • †Anomalocystites coronatus
  • †Anoplia
    • †Anoplia nucleata
  • †Anoplotheca
  • †Anostylostroma
  • †Anrangeroceras
    • †Anrangeroceras repens
    • †Anrangeroceras whitehallense
  • †Antholites
  • †Aorocrinus
    • †Aorocrinus formosus
  • †Aparchites
    • †Aparchites minutissimus
  • Restoration of the Middle Ordovician-Silurian nautiloid cephalopod Cameroceras feeding on an Aphetoceras, while a quartet of Cyclostomiceras swim by
    †Aphetoceras
    • †Aphetoceras attenuatum
    • †Aphetoceras farnsworthi
    • †Aphetoceras ruedemanni
  • †Aphyllopteris
    • †Aphyllopteris delwarensis
  • †Aphyllum
    • †Aphyllum fascicularium
  • †Apianurus
    • †Apianurus narrawayi
  • †Apiculiretusispora
    • †Apiculiretusispora brandtii
  • †Apiocystites
    • †Apiocystites elegans
  • †Apsidognathus
    • †Apsidognathus tuberculatus
  • †Arachnoxylon
    • †Arachnoxylon kopfi
  • †Archaeacarus – type locality for genus
    • †Archaeacarus dubinini – type locality for species
  • Life restoration of the Late Devonian-Carboniferous tree Archaeopteris with insets detailing its anatomy
    †Archaeopteris
  • †Archaeosigillaria
    • †Archaeosigillaria primaeva
    • †Archaeosigillaria vanuxemi
    • †Archaeosigillaria vanuxemii
  • †Archegonaspis
  • †Archinacella
    • †Archinacella deformata
    • †Archinacella magna – type locality for species
    • †Archinacella parva – type locality for species
    • †Archinacella proprius
    • †Archinacella pulaskiensis
  • †Archoceras – tentative report
  • Fossil of the Silurian trilobite Arctinurus
    †Arctinurus
    • †Arctinurus boltoni
    • †Arctinurus nereus
  • Argyrotheca
    • †Argyrotheca cuneata
  • †Arjamannia – tentative report
  • †Arthracantha
    • †Arthracantha ithacensis
  • †Arthroacantha
    • †Arthroacantha carpenteri
  • †Arthroclema
  • †Arthrophycus
    • †Arthrophycus alleganiensis
    • †Arthrophycus alleghaniensis
  • †Arthrostylus
    • †Arthrostylus tenius
  • †Asaphocinus
  • †Asaphocrinus
    • †Asaphocrinus ornatus
  • Fossil of the Early-Middle Ordovician trilobite Asaphus
    †Asaphus
    • †Asaphus alpha
    • †Asaphus beta
    • †Asaphus gamma
  • †Ascograptus
  • †Asinomphalus
    • †Asinomphalus antiqua
  • †Asperconella
    • †Asperconella gloriae – type locality for species
    • †Asperconella troyensis
  • †Aspidocrinus
  • †Asteropteris
    • †Asteropteris kopfi
  • †Astraeospongium
  • †Atactotoechus
    • †Atactotoechus acritus
    • †Atactotoechus kayi
  • †Atalacrinus
    • †Atalacrinus arctus
  • †Atelelasma
    • †Atelelasma multicosta
  • †Ateleocystites
    • †Ateleocystites balanoides
  • †Atelestrocrinus
  • †Athabaskiella
  • †Athroacantha
  • †Athyris
  • †Atlanticocoelia
    • †Atlanticocoelia acutiplicata
  • †Atopostroma
  • †Atops
  • †Atractocrinus
    • †Atractocrinus kopfi
  • †Atribonium
    • †Atribonium halli
  • †Atrypa
  • †Atrypina
    • †Atrypina diparilis
    • †Atrypina disparilis
    • †Atrypina rugosa
  • Life restoration of the Middle Devonian arachnid Attercopus
    †Attercopus
  • †Aulacognathus
    • †Aulacognathus latus
  • †Aulatornoceras
    • †Aulatornoceras auris
    • †Aulatornoceras eifliense
    • †Aulatornoceras paucistriatum
    • †Aulatornoceras rhysum
  • †Aulocystis
    • †Aulocystis commensalis
    • †Aulocystis cooperi
    • †Aulocystis dichotoma
    • †Aulocystis jacksoni
  • Fossil of the Late Ordovician-Permian tabulate coral Aulopora
    †Aulopora
  • †Auroraspora – or unidentified comparable form
    • †Auroraspora macromanifestus
  • Avicula – tentative report
  • †Aviculopecten
    • †Aviculopecten ornatus

B
  • †Bactrites
  • †Bactrocrinites
    • †Bactrocrinites fieldi
  • †Bactrotheca – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Bactrotheca emmonsi
  • Bairdia
    • †Bairdia summacuminata
  • †Balbiniconcha
    • †Balbiniconcha hebe
  • †Baltagnostus
  • †Balticopora
    • †Balticopora tenuimurale
  • †Baltoceras
    • †Baltoceras pusillum – tentative report
  • †Barinophyton
    • †Barinophyton citrulliforme
  • †Barrandeoceras
    • †Barrandeoceras natator
  • †Barrandeophyllum
    • †Barrandeophyllum reimanni
    • †Barrandeophyllum simplex
  • †Barroisella
    • †Barroisella campbelli – or unidentified comparable form
  • †Barynema
    • †Barynema lirata
    • †Barynema multilirata
  • †Basidechenella
    • †Basidechenella rowi
  • †Basilicus
    • †Basilicus barrandi
    • †Basilicus whittingtoni
  • †Bassleridiscus – type locality for genus
    • †Bassleridiscus mohawkensis – type locality for species
  • †Bassleroceras
    • †Bassleroceras beekmanense
    • †Bassleroceras champlainense – type locality for species
    • †Bassleroceras kirbyi
    • †Bassleroceras microscopium
    • †Bassleroceras perseus
    • †Bassleroceras smithbasinense – type locality for species
    • †Bassleroceras spissiseptum
    • †Bassleroceras triangulum – type locality for species
    • †Bassleroceras vassarina – type locality for species
  • Illustration of fossils of the Cambrian trilobite Bathydiscus
    †Bathydiscus
  • †Bathyrellus
    • †Bathyrellus brevispinus
  • †Bathyurellus
    • †Bathyurellus platypus
  • †Bathyuriscidella
  • †Bathyuriscus
  • †Bathyurus
    • †Bathyurus extans
    • †Bathyurus longispinus
  • †Batostoma
    • †Batostoma campensis
    • †Batostoma chazyensis
    • †Batostoma lanensis
    • †Batostoma sheldonensis
  • †Batostomella
    • †Batostomella granulifera
  • †Beachia
  • †Beecherella
  • Fossil of the Middle Devonian trilobite Bellacartwrightia
    †Bellacartwrightia
    • †Bellacartwrightia calliteles
    • †Bellacartwrightia phyllocaudata
  • †Bellefontia
    • †Bellefontia gyracantha
  • †Bellerophon
    • †Bellerophon helena
    • †Bellerophon pelops
    • †Bellerophon shelbiensis – type locality for species
  • †Belodina
  • †Bembexia
    • †Bembexia insolita – type locality for species
  • †Benthamaspis
    • †Benthamaspis striata – or unidentified comparable form
  • †Benthanyphyllum
  • †Bergstroemognathus
    • †Bergstroemognathus extensus
  • †Berounella
  • †Bertiella
  • †Bethanyphyllum
    • †Bethanyphyllum robustum
    • †Bethanyphyllum robustus
  • †Beyrichia
    • †Beyrichia lakemontensis – or unidentified related form
    • †Beyrichia veronica
  • †Bicia
  • †Bideirella
    • †Bideirella reticulata
  • †Bieberiana
    • †Bieberiana gowandense – type locality for species
  • †Billingsestraea
    • †Billingsestraea varneuili
  • †Bilobia
    • †Bilobia pisum
  • †Biornatispora
    • †Biornatispora dentata
    • †Biornatispora pseudospinosa
  • †Birdsallella
    • †Birdsallella catena – type locality for species
    • †Birdsallella devonica
  • †Blastoidocrinus
    • †Blastoidocrinus carchariaedens
    • †Blastoidocrinus expansa
  • †Blotherophyllum
  • †Blothrophyllum
    • †Blothrophyllum decorticatum
    • †Blothrophyllum promiseum
    • †Blothrophyllum promissum
  • †Bolaspidella
  • †Bolbocephalus
  • †Bolboparia
  • Fossil of the Ordovician echinoderm Bolboporites
    †Bolboporites
    • †Bolboporites americanus
  • †Bollia
    • †Bollia hindei
  • †Bonnia
  • †Botryllopora
    • †Botryllopora socialis
  • †Botryocrinus
    • †Botryocrinus reimanni
  • †Botsfordia
    • †Botsfordia caelata
  • †Boucotinskia
    • †Boucotinskia sulcata
    • †Boucotinskia sulcatus
  • †Bowmania
    • †Bowmania pennsylvanica – or unidentified comparable form
  • †Brachiocrinus
    • †Brachiocrinus nodosarius
  • †Brachyopterus
  • †Brachyprion
  • †Breenops
    • †Breenops boothi
  • †Breviphrentis
    • †Breviphrentis roemeri
    • †Breviphrentis variabilis
    • †Breviphrentis yandelli
  • †Briantelasma – type locality for genus
    • †Briantelasma americanum – type locality for species
    • †Briantelasma knoxboroense – type locality for species
    • †Briantelasma knoxboroensis
  • †Bucanella
  • †Bucania
    • †Bucania bellapuncta
    • †Bucania stigmosa
    • †Bucania sulcatina
  • †Bucanopsis
  • †Buchiola
    • †Buchiola retrostriata
  • †Buehleroceras
    • †Buehleroceras arcuatum
    • †Buehleroceras infundibulum
    • †Buehleroceras sinuatum
  • Fossilized heads of the Silurian eurypterid ("sea scorpion") Buffalopterus
    †Buffalopterus
    • †Buffalopterus pustulosus
  • †Bufina
    • †Bufina bicornuta
  • †Bumastoides
    • †Bumastoides aplatus
    • †Bumastoides gardenensis
    • †Bumastoides milleri
  • †Bumastus
  • †Bunaia
  • †Buthograptus
    • †Buthograptus laxus
  • †Buthotrephis
    • †Buthotrephis gracilis
    • †Buthotrephis palmata
    • †Buthotrephis ramosa
  • †Byssonychia
    • †Byssonychia praecursa
    • †Byssonychia radiata
  • Bythocypris
    • †Bythocypris cylindrica
    • †Bythocypris lucasensis
    • †Bythocypris phaseoella – type locality for species
    • †Bythocypris subquadrata
    • †Bythocypris transptyxis – type locality for species
    • †Bythocypris tubercula – type locality for species
  • †Bythocyproidea
    • †Bythocyproidea eriensis – or unidentified comparable form
  • †Bythopora

C
  • †Cabrieroceras
    • †Cabrieroceras plebeiforme
  • †Cairoa
    • †Cairoa lamanekii
  • †Calacanthopora
    • †Calacanthopora senticosa
  • †Calamophyton
    • †Calamophyton bicephalum
  • †Calamopitys
    • †Calamopitys eupuncatata
  • †Calceocrinus
    • †Calceocrinus chrysalis
  • †Calliocrinus
  • †Callipleura
    • †Callipleura nobilis
  • †Callistocrinus
    • †Callistocrinus tesselatus
  • †Callixylon
    • †Callixylon erianum
    • †Callixylon petryi
    • †Callixylon Zalesskyi – or unidentified comparable form
    • †Callixylon zalesskyi
  • †Callocystites
    • †Callocystites jewetti
  • †Calodiscus
    • †Calodiscus lobatus
  • †Calvibembexia
    • †Calvibembexia sulcomarginata
  • †Calvinella – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Calvinella prethoparia
  • †Calymene
  • †Calymenella
    • †Calymenella rostrata
  • †Calyptaulax
    • †Calyptaulax annulata
    • †Calyptaulax callicephalus
  • †Calyptosporites – or unidentified comparable form
    • †Calyptosporites velatus
  • †Camarotoechia
    • †Camarotoechia acinus
    • †Camarotoechia aequiradiata
    • †Camarotoechia altiplicata
    • †Camarotoechia billingsi
    • †Camarotoechia constricta
    • †Camarotoechia gongregata
    • †Camarotoechia humilis
    • †Camarotoechia litchfieldensis
    • †Camarotoechia navicella
    • †Camarotoechia neglecta
    • †Camarotoechia obtusiplicata
    • †Camarotoechia obtusplicata
    • †Camarotoechia pauciplicata
    • †Camarotoechia pristinus
    • †Camarotoechia robusta
    • †Camarotoechia saxatilis
    • †Camarotoechia saxatillis
    • †Camarotoechia semiplicata
    • †Camarotoechia tethys
  • †Camerella
    • †Camerella varians
    • †Camerella ventricosa
  • Fossilized shell of the Middle Ordovician-Silurian nautiloid cephalopod Cameroceras
    †Cameroceras
  • †Campbelloceras
    • †Campbelloceras rotundum
  • †Caninia
    • †Caninia complexa
    • †Caninia tabulata
  • †Cannapora
    • †Cannapora junciformis
  • †Cannopora
    • †Cannopora junciformis
  • Fossil of the Silurian eurypterid ("sea scorpion") Carcinosoma
    †Carcinosoma
    • †Carcinosoma scorpionis
    • †Carcinosoma spiniferus
  • †Cardiograptus
  • †Carinaropsis – type locality for genus
    • †Carinaropsis carinata – type locality for species
  • †Cariniferella
    • †Cariniferella carinata
    • †Cariniferella tioga
  • †Carinoceras
    • †Carinoceras vagans – type locality for species
  • †Carniodus
    • †Carniodus carnulus
  • †Carolinites
    • †Carolinites tasmanensis
  • †Cartersoceras
    • †Cartersoceras noveboracense – type locality for species
  • †Carydium
    • †Carydium bellistriata
    • †Carydium clarkei – type locality for species
    • †Carydium globularis
    • †Carydium varicosa
    • †Carydium varicosum
  • †Caryocaris
  • †Caryocrinites
    • †Caryocrinites ornatus
  • †Caseoceras
    • †Caseoceras obesum – type locality for species
  • Illustration of a fossil and restoration of the Early Ordovician nautiloid cephalopod Cassinoceras
    †Cassinoceras
    • †Cassinoceras explanator
    • †Cassinoceras grande
  • †Cassowarioides
    • †Cassowarioides whitei – type locality for species
  • †Casteroceras
    • †Casteroceras alternatum
  • †Catatonocrinus
    • †Catatonocrinus halli
  • †Catazone
    • †Catazone nevadana – or unidentified comparable form
  • †Catazyga
    • †Catazyga erratica
  • †Catoraphiceras
    • †Catoraphiceras cushingi
  • †Caulopteris
    • †Caulopteris lockwoodi
  • †Caunopora
  • †Centroceras
    • †Centroceras marcellense
  • †Centrocyrtoceras
    • †Centrocyrtoceras mozolai
  • †Centronella
    • †Centronella gilboa
    • †Centronella glansfagea
    • †Centronella impressa
    • †Centronella lisbonensis
  • †Centrotarphyceras
    • †Centrotarphyceras imperator
    • †Centrotarphyceras seelyi
  • †Ceramopora
  • †Ceramoporella
  • †Ceratiocaris
  • †Ceratocephala
    • †Ceratocephala triacantheis
  • †Ceratopea
    • †Ceratopea canadensis – type locality for species
    • †Ceratopea obtusa – type locality for species
  • †Ceratopora
  • †Ceraurinella
    • †Ceraurinella latipyga – type locality for species
  • Fossil of the Middle-Late Ordovician trilobite Ceraurus
    †Ceraurus
    • †Ceraurus hudsoni
    • †Ceraurus pleurecanthemus
    • †Ceraurus pleurexanthemus
    • †Ceraurus pleuxanthemus
    • †Ceraurus polydorus
    • †Ceraurus pompilius
  • †Chaetetes
    • †Chaetetes lycoperdon
  • †Champlainopora
    • †Champlainopora chazyensis
  • †Chancelloria
  • †Chapinella – tentative report
  • †Charactocrinus
    • †Charactocrinus pustulosus
  • †Charionella
    • †Charionella ovata
    • †Charionella rostrata
  • †Charionoides
    • †Charionoides doris
  • †Chasmatopora
    • †Chasmatopora angulata
    • †Chasmatopora angulatum
    • †Chasmatopora asperatostriata
    • †Chasmatopora asperostriata
  • †Chazydictya
    • †Chazydictya chazyensis
  • †Chazyoceras
    • †Chazyoceras valcourense
  • †Cheiloceras
    • †Cheiloceras amblylobum
  • †Cheirocrinus
    • †Cheirocrinus anatiformis
  • Fossil of the Cambrian-Middle Devonian trilobite Cheirurus
    †Cheirurus
    • †Cheirurus niagarensis
  • †Chilobolbina
    • †Chilobolbina hartfordensis
  • †Chilotrypa
    • †Chilotrypa ostiolata
  • †Chironiptrum – tentative report
    • †Chironiptrum arcuatum – type locality for species
  • †Chondrites
  • †Chonetes
    • †Chonetes cornutus
    • †Chonetes deflecta
    • †Chonetes ensicosta
    • †Chonetes filicostatus
    • †Chonetes hemisphericus
    • †Chonetes mucronatus
    • †Chonetes nectus – or unidentified comparable form
    • †Chonetes vicinus
  • †Chonophyllum
    • †Chonophyllum magnificus
  • †Chonostrophia
    • †Chonostrophia reversa
  • †Chonostrophiella
  • †Christiania
    • †Christiania trentonensis
  • †Chutoceras
    • †Chutoceras nundaium
  • †Cimitaria
    • †Cimitaria corrugata
    • †Cimitaria elongata
    • †Cimitaria recurva
  • †Cincinnaticrinus
    • †Cincinnaticrinus multibrachiatus
    • †Cincinnaticrinus varibrachialis
  • Assemblage of fossilized shells of the Ordovician brachiopod Cincinnetina
    †Cincinnetina
  • †Cladochonus
    • †Cladochonus dichotoma
    • †Cladochonus jacksoni
  • †Cladopora
    • †Cladopora cervicornis
    • †Cladopora fibrosa – tentative report
    • †Cladopora multipora
    • †Cladopora reticulata
    • †Cladopora seriata
  • †Cladoxylon
    • †Cladoxylon dawsoni
    • †Cladoxylon hueberi
  • †Clarkecrinus
  • Fossils (1-8) of the Silurian eurypterid ("sea scorpion") Clarkeipterus
    †Clarkeipterus
    • †Clarkeipterus testudineus – type locality for species
  • †Clarkoceras
    • †Clarkoceras rhomboidale
    • †Clarkoceras ruedemanni
    • †Clarkoceras trapezoidale
  • †Clathrodictyon
  • †Clathropora
    • †Clathropora alcicornis
    • †Clathropora frondosa
  • †Clathrospira
    • †Clathrospira euconica
    • †Clathrospira subconica
  • †Cleionychia
    • †Cleionychia marginalis
    • †Cleionychia montrealensis
    • †Cleionychia undata
  • †Clelandia
    • †Clelandia parabola
  • †Clidochirus
    • †Clidochirus schucherti
  • †Clidophorus
    • †Clidophorus obscurus
    • †Clidophorus planulatus
  • Assemblage of fossils of the Cambrian graptolite Climacograptus
    †Climacograptus
    • †Climacograptus typicalis
  • †Clintonella
    • †Clintonella vagabunda – or unidentified comparable form
  • †Clionlithes
  • †Clionolithes
  • †Clitambonites
    • †Clitambonites multicosta
  • †Clitendoceras
    • †Clitendoceras montrealense
    • †Clitendoceras saylesi
  • †Clorinda
    • †Clorinda fornicata
  • †Codaster
    • †Codaster pyramidatus
  • †Coeloclema
    • †Coeloclema cavernosum
  • †Coelonella
    • †Coelonella scapha
  • †Coelospira
    • †Coelospira camilla
    • †Coelospira dichotoma
    • †Coelospira hemispherica
    • †Coelospira plicatula
    • †Coelospira sulcata
  • †Coenites
  • †Coenostelodictyon
    • †Coenostelodictyon jewetti
    • †Coenostelodictyon krekovi – or unidentified comparable form
  • †Coenostroma
    • †Coenostroma monticuliferum – or unidentified comparable form
  • †Coleolus
    • †Coleolus aciculatum
    • †Coleolus camilla
    • †Coleolus crenatocinctum
    • †Coleolus tenuicinctum
    • †Coleolus tenuicinctus
  • †Colpodexylon
    • †Colpodexylon deatsii
    • †Colpodexylon trifurcatum
  • †Colpomya
    • †Colpomya faba
  • †Columnaria
  • †Compsocrinus
    • †Compsocrinus relictus
  • †Conchopeltis
    • †Conchopeltis alternata
  • †Conocardium
    • †Conocardium denticulatum – type locality for species
  • †Conocephalina
    • †Conocephalina whitehallensis – type locality for species
  • †Conocerina
    • †Conocerina reducta
  • †Conostichnus
  • †Conotheca
    • †Conotheca australiensis – type locality for species
  • †Conotreta
    • †Conotreta rusti – type locality for species
  • †Conularia
    • †Conularia longa
    • †Conularia niagarensis
    • †Conularia trentonensis
    • †Conularia triangularis
    • †Conularia triangulata
    • †Conularia undulata
  • †Conularid
  • Life restoration of the Silurian-Early Devonian primitive land plant Cooksonia
    †Cooksonia
    • †Cooksonia hemisphaerica – or unidentified comparable form
  • †Coolinia
    • †Coolinia subplana
    • †Coolinia tnuis
  • †Cordatomyonia
    • †Cordatomyonia shupei
  • †Cordylocrinus
    • †Cordylocrinus plumosus
    • †Cordylocrinus ramulosus
  • †Cordylodus
    • †Cordylodus angulatus
    • †Cordylodus caseyi
    • †Cordylodus proavus
  • †Cornellites
    • †Cornellites chemungensis
    • †Cornellites emaceratum
    • †Cornellites emaceratus
    • †Cornellites fasciculata
    • †Cornellites flabella
    • †Cornellites flabellum
    • †Cornellites flubella
  • Fossil of the Middle Ordovician-Carboniferous horn coral Cornulites
    †Cornulites
  • †Cornuproetus
    • †Cornuproetus beecheri
  • †Coronocrinus
    • †Coronocrinus polydactylus
  • †Corynexochides – tentative report
  • †Corynoides
  • †Corynotrypa
    • †Corynotrypa dissimilis
  • †Costalocrinus
    • †Costalocrinus rex – type locality for species
    • †Costalocrinus sentosus
  • †Costellirorstra
    • †Costellirorstra peculiaris – or unidentified comparable form
  • †Costellirostra
  • †Costellispirifer
  • †Costispirifer
    • †Costispirifer arenosa – or unidentified comparable form
    • †Costispirifer arenosus
  • †Costistricklandia
    • †Costistricklandia gaspeensis
    • †Costistricklandia lirata
  • †Costulatostyliolina
  • †Cotteroceras
  • †Cranaena
    • †Cranaena eudora
    • †Cranaena lincklaeni
    • †Cranaena linklaen
    • †Cranaena linklaeni
    • †Cranaena navicella
    • †Cranaena romingeri
    • †Cranaena subalobosa
  • Crania
    • †Crania crenistriata
  • A living Craniella sponge
    Craniella
    • †Craniella hamiltoniae
  • †Craniops
    • †Craniops hamiltoniae
    • †Craniops linguiformis
    • †Craniops squammiformis
  • †Crassotornoceras
    • †Crassotornoceras crassum – or unidentified related form
  • †Crenistriella
    • †Crenistriella crenistria
    • †Crenistriella rotalinea
  • †Crickites
    • †Crickites lindneri
  • †Crinobrachiatus
    • †Crinobrachiatus brachiatus
  • †Crinoid
    • †Crinoid anchors
  • †Cristodus
    • †Cristodus loxoides
  • †Crownopora
  • †Crurispina
    • †Crurispina nana
    • †Crurispina spinosa
  • †Cryptograptus
  • †Cryptolithus
    • †Cryptolithus bellulus
    • †Cryptolithus lorettensis
    • †Cryptolithus tesselatus
  • †Cryptonella
    • †Cryptonella planirostra
    • †Cryptonella planirostrata
    • †Cryptonella rectirostra
    • †Cryptonella rectirostrata
  • †Cryptophyllus
    • †Cryptophyllus arsinius – type locality for species
  • †Ctenacaronychus – type locality for genus
    • †Ctenacaronychus nortoni – type locality for species
  • †Ctenocrinus
    • †Ctenocrinus nobilissimus
    • †Ctenocrinus pachydactylus
    • †Ctenocrinus stoloniferus
  • †Ctenodonta
    • †Ctenodonta bidorsata
    • †Ctenodonta dubia
    • †Ctenodonta dubiaformis
    • †Ctenodonta elliptica
    • †Ctenodonta lata
    • †Ctenodonta limbata
    • †Ctenodonta machaeriformis
    • †Ctenodonta mactriformis
    • †Ctenodonta peracuta
    • †Ctenodonta salinensis
  • †Ctenoloculina
    • †Ctenoloculina cicatricosa
    • †Ctenoloculina eurybathrota
  • Fossils and life restoration of the Silurian eurypterid ("sea scorpion") Ctenopterus
    †Ctenopterus
    • †Ctenopterus cestrotus
  • †Cuneamya
    • †Cuneamya alveata
    • †Cuneamya cuneata
    • †Cuneamya elliptica
  • †Cupularostrum
    • †Cupularostrum congregata
    • †Cupularostrum contracta
    • †Cupularostrum dotis
    • †Cupularostrum exima
    • †Cupularostrum eximia
    • †Cupularostrum horsfordi
    • †Cupularostrum orbicularis – tentative report
    • †Cupularostrum prolifica
    • †Cupularostrum stevensi
  • †Cupulocorona
    • †Cupulocorona gemmiformis
  • †Cupulocrinus
    • †Cupulocrinus gracilus
  • †Cupulorostrum
    • †Cupulorostrum congregata
    • †Cupulorostrum dotis
    • †Cupulorostrum horsfordi
    • †Cupulorostrum prolifica
    • †Cupulorostrum sappho
  • †Curtoceras
    • †Curtoceras eatoni
    • †Curtoceras internistriatum
  • †Cyathocylindrium
  • †Cyathodictya – tentative report
  • †Cyathophyllum
  • †Cybele
    • †Cybele prima
    • †Cybele primus
  • †Cybeloides
    • †Cybeloides prima
  • †Cyclonema
    • †Cyclonema cancellatum
    • †Cyclonema leptonotum
    • †Cyclonema varicasum
    • †Cyclonema varicosum
  • †Cyclora
    • †Cyclora subulata
  • †Cyclostomiceras
    • †Cyclostomiceras cassinense
  • †Cylindrophyllum
  • †Cymatonota
    • †Cymatonota raricosta
    • †Cymatonota undatum
  • †Cymostrophia
    • †Cymostrophia patersoni
  • Fossil of the Late Ordovician-Late Devonian trilobite Cyphaspis
    †Cyphaspis
  • †Cypricardella
    • †Cypricardella bellastriata
    • †Cypricardella bellistriata
    • †Cypricardella complana
    • †Cypricardella complanata
    • †Cypricardella complanatus
    • †Cypricardella crassa
    • †Cypricardella gregaria
    • †Cypricardella laroquei
    • †Cypricardella marylandica
    • †Cypricardella tenuistriata
    • †Cypricardella tenuistriatus
  • †Cypricardina
  • †Cypricardinea
    • †Cypricardinea indenta
  • †Cypricardinia
  • †Cypricordella
    • †Cypricordella tenuistriata
  • †Cyrtactinoceras
    • †Cyrtactinoceras boycii
    • †Cyrtactinoceras champlainense
  • †Cyrtia
    • †Cyrtia exporrecta
    • †Cyrtia meta
    • †Cyrtia pyramidalis
  • †Cyrtina
    • †Cyrtina dalmani – or unidentified comparable form
    • †Cyrtina hamiltonensis
    • †Cyrtina hamiltoniae
    • †Cyrtina pyramidalis
    • †Cyrtina recta
    • †Cyrtina rostrata
    • †Cyrtina varia – or unidentified comparable form
  • †Cyrtinoides
    • †Cyrtinoides eliei
  • †Cyrtobaltoceras
    • †Cyrtobaltoceras gracile
  • Restoration of the Cambrian-Middle Devonian nautiloid cephalopod Cyrtoceras
    †Cyrtoceras
    • †Cyrtoceras eugenium
    • †Cyrtoceras kirkbyi – tentative report
    • †Cyrtoceras subcancellatum
  • †Cyrtodonta
    • †Cyrtodonta alata
    • †Cyrtodonta scala
    • †Cyrtodonta solitaria
  • †Cyrtodontula
    • †Cyrtodontula ventricosa
  • †Cyrtolites
    • †Cyrtolites ornatus
    • †Cyrtolites pileolus
    • †Cyrtolites type locality for species – informal
  • †Cyrtonella
    • †Cyrtonella mitella
  • †Cyrtorizoceras
    • †Cyrtorizoceras rusti – type locality for species
  • †Cyrtospira
    • †Cyrtospira raymondi
  • Fossilized shells of the Middle-Late Devonian brachiopod Cyrtospirifer
    †Cyrtospirifer
    • †Cyrtospirifer alti
    • †Cyrtospirifer altiplicatus
    • †Cyrtospirifer augusticardinalis
    • †Cyrtospirifer chemungensis
    • †Cyrtospirifer cyrtiniformis
    • †Cyrtospirifer disjunctus
    • †Cyrtospirifer hornellensis
    • †Cyrtospirifer inermis
    • †Cyrtospirifer nucalis
    • †Cyrtospirifer preshoensis
    • †Cyrtospirifer sulcifer
    • †Cyrtospirifer vandermarkensis
    • †Cyrtospirifer whitneyi
  • †Cyrtostropha – type locality for genus
    • †Cyrtostropha macrospira
  • †Cyrtovaginoceras
  • †Cystiphylloides
    • †Cystiphylloides americanum
    • †Cystiphylloides confollis
    • †Cystiphylloides conifolis
    • †Cystiphylloides conifollis
    • †Cystiphylloides sulcatum
  • †Cystiphyllum
    • †Cystiphyllum niagarense
  • †Cystophylloides
  • †Cytarocrinus
  • †Cyttarocrinus
    • †Cyttarocrinus eriensis

D
  • †Dactylogonia
    • †Dactylogonia incrassata
  • Fossil of the Carboniferous-Late Cretaceous petrified conifer wood morphogenus Dadoxylon
    †Dadoxylon
    • †Dadoxylon halli – or unidentified comparable form
  • †Dakeoceras
    • †Dakeoceras champlainense – type locality for species
    • †Dakeoceras gracilis
    • †Dakeoceras harrisi – type locality for species
  • †Dalejina
    • †Dalejina hybrida
    • †Dalejina oblata – tentative report
  • †Dalmanella
    • †Dalmanella elegantula
    • †Dalmanella elgantula
    • †Dalmanella rogata
    • †Dalmanella whittakeri
  • Fossil of the Late Ordovician-Middle Devonian trilobite Dalmanites
    †Dalmanites
  • †Dalmanitina
  • †Daonella
  • †Dapsilodus
    • †Dapsilodus mutatus
  • †Dawsonoceras
    • †Dawsonoceras americanum
    • †Dawsonoceras americanus
    • †Dawsonoceras annulatum
  • †Decadocrinus
    • †Decadocrinus multinodosus
    • †Decadocrinus ornatus
  • †Dechenella
    • †Dechenella macrocephalus
    • †Dechenella rowi
  • †Decoriconus
    • †Decoriconus fragilis
  • Life restoration of two species of the Silurian trilobite Deiphon
    †Deiphon
  • †Dekayia
  • †Delphiceras
    • †Delphiceras cataphractum
  • †Deltacrinus
    • †Deltacrinus clarus
    • †Deltacrinus contractus
  • †Delthyris
  • †Deltoceras
    • †Deltoceras vaningeri
  • †Denayella
    • †Denayella rotalia
  • †Dendrocrinus
    • †Dendrocrinus alternatus
    • †Dendrocrinus aphelos
    • †Dendrocrinus bactronodosus
    • †Dendrocrinus longidactylus
    • †Dendrocrinus ursae
  • †Dendrocystites
    • †Dendrocystites paradoxocus
  • †Densastroma
    • †Densastroma pexisum
  • †Depasophyllum
    • †Depasophyllum tabulatum – type locality for species
  • †Desmograptus
  • †Devonacarus – type locality for genus
    • †Devonacarus sellnicki – type locality for species
  • †Devonaster
  • †Devonoblastus
    • †Devonoblastus leda
  • †Devonochonetes
    • †Devonochonetes coronatus
    • †Devonochonetes scitulus
  • †Diabolirhynchia
    • †Diabolirhynchia acinus – or unidentified comparable form
  • †Diabolirhynchus
    • †Diabolirhynchus acinus
  • †Diacanthaspis
    • †Diacanthaspis parvula
  • †Diamesopora
    • †Diamesopora dichotoma
  • †Diamesropora
    • †Diamesropora dichotoma
  • †Diaphelasma
    • †Diaphelasma oklahomense – or unidentified comparable form
  • †Diaphorastoma
  • †Diaphorodus
    • †Diaphorodus delicatus
  • †Dibolbina
  • †Dibolisporites
    • †Dibolisporites correctus – or unidentified comparable form
  • †Dicellograptus
  • †Dicoelosia
    • †Dicoelosia biloba
  • †Dicranella
    • †Dicranella bivertex
  • †Dicranograptus
    • †Dicranograptus nicholsoni
  • †Dicranopeltis
  • †Dicranopltus
    • †Dicranopltus nereus – or unidentified comparable form
  • †Dictyobembix
    • †Dictyobembix hebe – type locality for species
  • †Dictyonella
    • †Dictyonella coralifera
  • †Dictyonema
    • †Dictyonema gracile
    • †Dictyonema gracilis
    • †Dictyonema hamiltoniae
    • †Dictyonema retiforme
    • †Dictyonema subretiforme
  • †Dictyotomaria
    • †Dictyotomaria capillaria
    • †Dictyotomaria itylus – type locality for species
  • Fossil of the Middle Ordovician graptolite Didymograptus
    †Didymograptus
  • †Diestoceras
    • †Diestoceras sycon – type locality for species
  • †Dignomia
    • †Dignomia alveata
  • †Dikelocephalus
    • †Dikelocephalus hartti
    • †Dikelocephalus tribulus – type locality for species
  • †Dimerocrinites
    • †Dimerocrinites arborescens
    • †Dimerocrinites lilliformis
    • †Dimerocrinites lockportensis
  • †Dimerocrinus
    • †Dimerocrinus brachiatus
    • †Dimerocrinus liliiformis
  • †Dimeropyge
    • †Dimeropyge clintonensis
  • †Dinorthis
  • Fossil of the Late Ordovician-Middle Devonian trilobite Dipleura
    †Dipleura
    • †Dipleura dekayi
  • †Diploclema
    • †Diploclema sparsum
  • †Diplograptus
  • †Diplophyllum
    • †Diplophyllum subcaespitosum
  • Discina
    • †Discina doria
    • †Discina minuta
  • †Discinella
    • †Discinella micans
  • †Discinocaris
  • †Discomyorthis
    • †Discomyorthis musculosa
  • †Discosorus
    • †Discosorus conoideus
  • †Disphyllum
    • †Disphyllum caespitosum
  • †Distacodus
    • †Distacodus falcatus
  • †Distomodus
  • †Dizygopleura
    • †Dizygopleura intermedia
    • †Dizygopleura proutyi
  • †Dizygopleurella
  • †Dolatocrinus
    • †Dolatocrinus lirata
    • †Dolatocrinus liratus
    • †Dolatocrinus springeri – type locality for species
  • †Doleroides
  • †Dolerorthis
    • †Dolerorthis flabella
    • †Dolerorthis flabellites – or unidentified related form
  • †Dolichoharpes
  • Life restoration of the Silurian eurypterid ("sea scorpion") Dolichopterus
    †Dolichopterus
    • †Dolichopterus herkimerensis – type locality for species
    • †Dolichopterus jewetti – type locality for species
    • †Dolichopterus macocheirus
    • †Dolichopterus siluriceps
  • †Doraclatum
    • †Doraclatum compandium – type locality for species
  • †Douvillina
    • †Douvillina cayuta
    • †Douvillina inaequistriata
    • †Douvillina inequistriata
    • †Douvillina ineuistriata
    • †Douvillina inquistriata
  • †Dracochela – type locality for genus
  • †Drepanellina
    • †Drepanellina modesta
  • †Drepanoistodus
    • †Drepanoistodus concavus
    • †Drepanoistodus suberectus
  • Fossilized foliage from the Early-Late Devonian club moss relative Drepanophycus
    †Drepanophycus
  • †Drydenia
    • †Drydenia foliata
  • †Dwightoceras
    • †Dwightoceras dactyloides
  • †Dynamocrinus
    • †Dynamocrinus robustus
  • †Dyoidophragma
    • †Dyoidophragma polymorphum

E
  • †Eatonia
    • †Eatonia medalis
    • †Eatonia medialis
  • †Ecchosis – type locality for genus
    • †Ecchosis pulchribothrium – type locality for species
  • †Ecculiomphalus
    • †Ecculiomphalus fredericus
  • †Eccyliopterus
    • †Eccyliopterus kalmi
    • †Eccyliopterus vagrans
  • †Ecdyceras
    • †Ecdyceras sinuiferum
  • †Echinocaris
  • †Echinocoelia
    • †Echinocoelia ambocoelioides
    • †Echinocoelia ambocoeloides
  • †Echinolichas
    • †Echinolichas eriopus
  • †Ectenoceras
  • †Ectenocrinus
    • †Ectenocrinus simplex
    • †Ectenocrinus triangulus
  • †Ectenodesma
  • †Ectenolites
    • †Ectenolites clelandi
    • †Ectenolites curviseptatus
    • †Ectenolites extensus
    • †Ectenolites sinuatus
  • †Ectocycloceras
    • †Ectocycloceras cataline
    • †Ectocycloceras cato
  • †Edaphophyllum
  • †Eddya
    • †Eddya sullivanensis
  • †Edmondia (bivalve) – tentative report
    • †Edmondia philipi
  • †Edriocrinus
    • †Edriocrinus occidentalis
    • †Edriocrinus pociliformis
  • †Elasmonema
    • †Elasmonema lichas
  • Fossil of the Middle-Late Devonian trilobite Eldredgeops
    †Eldredgeops
  • †Eleutherocrinus
  • †Elita
    • †Elita fimbriata
    • †Elita fimoriata
  • †Ellesmeroceras
    • †Ellesmeroceras inbricatum
    • †Ellesmeroceras indomitum
  • †Elliptocephala
    • †Elliptocephala asaphoides
  • †Elyta
    • †Elyta fimbriata
  • †Emanuella
    • †Emanuella subumbona
  • †Emmanuella
    • †Emmanuella subumbona
  • †Emmelezoe
  • †Emmelozoe
  • †Emmonsia
  • †Emphanisporites – tentative report
  • †Enallophrentis – tentative report
  • †Encrinaster
  • †Encrinurus
    • †Encrinurus ornatus
  • Fossilized shells and restored appearances of the Middle-Late Ordovician nautiloid cephalopod Endoceras
    †Endoceras
    • †Endoceras annuliferum
    • †Endoceras champlainense
    • †Endoceras hudsoni
    • †Endoceras magister
    • †Endoceras proteiforme
    • †Endoceras raymondi
    • †Endoceras tityrus
  • †Endodesma
    • †Endodesma tranceps
  • †Endophyllum
    • †Endophyllum ciurcai – type locality for species
  • †Enfieldia
    • †Enfieldia mutilata
  • †Ensiferites
    • †Ensiferites armatus
    • †Ensiferites bennetti
    • †Ensiferites delicatulus
    • †Ensiferites leptodactylus
    • †Ensiferites wattlesi
  • †Enterolasma
    • †Enterolasma calculum
    • †Enterolasma caliculum
    • †Enterolasma strictum
  • †Eoagnostus
    • †Eoagnostus acrorhachis – type locality for species
  • †Eoangyomphalus
    • †Eoangyomphalus peneglabra – type locality for species
  • †Eoarthropleura – type locality for genus
  • †Eobucania
    • †Eobucania subovatus – type locality for species
  • †Eocoelia
    • †Eocoelia hemisphaerica
    • †Eocoelia hemispherica
    • †Eocoelia intermedia
    • †Eocoelia sulcata
  • †Eodevonaria
    • †Eodevonaria acutiradiata
    • †Eodevonaria arcuata
    • †Eodevonaria gaspensis – or unidentified comparable form
    • †Eodevonaria hemispherica
  • †Eodictyonella
    • †Eodictyonella corallifera
  • †Eohalysiocrinus
    • †Eohalysiocrinus caelatus
    • †Eohalysiocrinus typus
  • †Eoleperditia
  • †Eomyelodactylus
    • †Eomyelodactylus sparteus – type locality for species
    • †Eomyelodactylus spartus
    • †Eomyelodactylus uniformis – type locality for species
  • †Eoplectodonta
    • †Eoplectodonta transversalis
  • †Eopolychaetus
  • †Eorizoceras
    • †Eorizoceras platyceroides
  • †Eorudolfoceras
    • †Eorudolfoceras antiquum
  • †Eoschizodus
    • †Eoschizodus chemungensis
  • †Eoschuchertella
    • †Eoschuchertella arcotostriata
  • Fossilized roots of the Middle Devonian tree Wattieza
    †Eospermatopteris
    • †Eospermatopteris erianus – tentative report
  • †Eospinatrypa
    • †Eospinatrypa nodostriata
  • †Eospirifer
  • †Eospongia
    • †Eospongia varians
  • †Eosyringothyris – or unidentified comparable form
    • †Eosyringothyris asper
  • †Eotripteroceras
    • †Eotripteroceras minutum
  • †Epitornoceras
    • †Epitornoceras mithracoides – or unidentified comparable form
    • †Epitornoceras peracutum
  • †Erdiotrypa
    • †Erdiotrypa striata
  • †Eremoceras
    • †Eremoceras expansum
    • †Eremoceras multicameratum
    • †Eremoceras teres
  • Illustration of fossils of various organs and stages of development of the Silurian-Early Devonian eurypterid ("sea scorpion") Erettopterus
    †Erettopterus
    • †Erettopterus globiceps
    • †Erettopterus grandis
    • †Erettopterus waylandsmithi – type locality for species
  • †Eridophyllum
    • †Eridophyllum gigas
    • †Eridophyllum subcaespitosum
  • †Eridotrypa
    • †Eridotrypa exigua
    • †Eridotrypa mutabilis
    • †Eridotrypa nutabilis
    • †Eridotrypa solida
    • †Eridotrypa striata
  • †Eridotrypella
    • †Eridotrypella striata – or unidentified comparable form
  • Fossils (figures 2-10) of the Silurian-Devonian eurypterid ("sea scorpion") Erieopterus
    †Erieopterus
    • †Erieopterus microphthalmus
  • †Eroicaspira
    • †Eroicaspira bellicincta
  • †Erratencrinurus
    • †Erratencrinurus vigilans
  • †Escharopora
  • †Etymothyris
  • †Eucalyptocrinites
    • †Eucalyptocrinites caelatus
  • †Eucalyptocrinus
    • †Eucalyptocrinus caelatus
  • †Eucheirocrinus
  • †Euconia
    • †Euconia sinuata – type locality for species
  • †Euglyphella
    • †Euglyphella asapha – type locality for species
    • †Euglyphella deltella – type locality for species
    • †Euglyphella numismoides
  • †Eukloedenella
  • †Eumetabolotoechia
    • †Eumetabolotoechia multicostata
  • †Eunema
  • †Eunoa
  • †Euomphalus
    • †Euomphalus clymenoides
    • †Euomphalus fairchildi – type locality for species
  • †Euptychaspis
    • †Euptychaspis typicalis
  • †Eurychilina
    • †Eurychilina canadensis
    • †Eurychilina latimarginata
  • Fossil of the Silurian eurypterid ("sea scorpion") Eurypterus
    †Eurypterus
  • †Eurystomites
    • †Eurystomites accelerans
    • †Eurystomites amplectens
    • †Eurystomites kelloggi
  • †Euryzone
    • †Euryzone arata
    • †Euryzone clausa
    • †Euryzone itys
  • †Eusarcus
  • †Euspirocrinus
    • †Euspirocrinus wolcottense
  • †Eutaxocrinus
    • †Eutaxocrinus ithacense
    • †Eutaxocrinus whiteavesi
  • †Exoclitendoceras – type locality for genus
    • †Exoclitendoceras rochdalense – type locality for species

F
  • †Fahraeusodus
    • †Fahraeusodus marathonensis
  • †Failleana
    • †Failleana limbata
  • †Falsipollex
    • †Falsipollex simplilobatus – type locality for species
  • †Fardenia
    • †Fardenia interstriata
  • Fossil of the Late Ordovician-Permian tabulate coral Favosites
    †Favosites
    • †Favosites alpenensis
    • †Favosites arbuscula
    • †Favosites argus
    • †Favosites basalticus
    • †Favosites biloculi
    • †Favosites canadensis
    • †Favosites constrictus
    • †Favosites emmonsi
    • †Favosites epidermatus
    • †Favosites favosideus
    • †Favosites hamiltoniae
    • †Favosites helderbergensis
    • †Favosites helderbergiae
    • †Favosites hisingeri
    • †Favosites limitaris
    • †Favosites milne-edswardii
    • †Favosites milneedwardsii
    • †Favosites niagarensis
    • †Favosites nitella – tentative report
    • †Favosites parasiticus
    • †Favosites placenta
    • †Favosites pyriforme
    • †Favosites pyriformis
    • †Favosites tuberosa
    • †Favosites turbinata
    • †Favosites turbinatus
  • †Fenestella
    • †Fenestella elegans
    • †Fenestella emaciata
    • †Fenestella eumaciata
    • †Fenestella planiramosa
    • †Fenestella tenuis
  • †Fenestrellina
  • †Ferestromatopora – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Filogranites
    • †Filogranites booiji
  • †Fimbrispirifer
    • †Fimbrispirifer divaricata
    • †Fimbrispirifer divaricatus
  • †Finkelnburgia
  • †Fistulipora
    • †Fistulipora crustula
    • †Fistulipora laminata
    • †Fistulipora sphericus
    • †Fistulipora tuberculosa
  • †Fistulopora
    • †Fistulopora tuberculosa
  • †Flabellitesia
    • †Flabellitesia flabellites
  • †Fletcheria
    • †Fletcheria incerta
    • †Fletcheria incognita
  • †Fletcherina
    • †Fletcherina incognita
  • Front (left) and right side (right) views of an enrolled fossil of the Middle Ordovician-Silurian trilobite Flexicalymene
    †Flexicalymene
  • †Floripatella
    • †Floripatella irregularis
  • †Floweria
    • †Floweria arctostriata
    • †Floweria becraftensis
    • †Floweria chemungensis
    • †Floweria perversa
  • †Foersteoceras
  • †Foerstephyllum
    • †Foerstephyllum halli
  • †Foliaster
    • †Foliaster transversus
  • †Foordites
    • †Foordites buttsi – or unidentified comparable form
  • Illustrations of fossilized shells of the Cambrian marine bivalve Fordilla
    †Fordilla
  • †Fremontoceras
    • †Fremontoceras jewetti
  • †Fusispira

G
  • †Garwoodia
    • †Garwoodia gregaria
  • †Gasconadia
    • †Gasconadia floridensis – type locality for species
    • †Gasconadia mohawkensis – type locality for species
  • †Gazacrinus
    • †Gazacrinus immaturus
  • Fossilized shell of the Middle Ordovician-Middle Devonian nautiloid cephalopod Geisonoceras
    †Geisonoceras
    • †Geisonoceras lineolatus
    • †Geisonoceras shumardi
    • †Geisonoceras tenuistriatum
    • †Geisonoceras tenuitextum
  • †Gelasinotarbus – type locality for genus
    • †Gelasinotarbus bifidus – type locality for species
    • †Gelasinotarbus bonamoae – type locality for species
    • †Gelasinotarbus fimbriunguis – type locality for species
    • †Gelasinotarbus heptops – type locality for species
    • †Gelasinotarbus reticulatus – type locality for species
  • †Gennaeocrinus
    • †Gennaeocrinus eucharis
  • Fossilized calyx and partial stem of the Devonian-Carboniferous crinoid ("sea lily") Gilbertsocrinus
    †Gilbertsocrinus
    • †Gilbertsocrinus alpenensis
    • †Gilbertsocrinus intersculptus – type locality for species
    • †Gilbertsocrinus rarispinus – type locality for species
    • †Gilbertsocrinus spinigerous
    • †Gilbertsocrinus spinigerus
  • †Gilboaphyton
    • †Gilboaphyton goldringiae
  • †Gilboarachne
    • †Gilboarachne griersoni – type locality for species
  • †Ginkgophyton
  • †Glaphurina
    • †Glaphurina lamottensis
  • †Glaphurus
    • †Glaphurus pustulatus
    • †Glaphurus pustulotus
  • †Glenisteroceras
    • †Glenisteroceras obscurum
  • †Glossites
    • †Glossites depressus
    • †Glossites nuculoides
  • †Glossograptus
  • †Glyptocardia
    • †Glyptocardia speciosa
  • Assemblage of fossils of the Middle Ordovician-Silurian crinoid ("sea lily") Glyptocrinus
    †Glyptocrinus
  • †Glyptocystites
    • †Glyptocystites forbesi
  • †Glyptodesma
  • †Glyptograptus
  • †Glyptomena
    • †Glyptomena distans
    • †Glyptomena prisca
  • †Glyptorthis
    • †Glyptorthis bellarugosa
    • †Glyptorthis crispata
    • †Glyptorthis sulcata
  • †Glyptotomaria
    • †Glyptotomaria ciliata – type locality for species
    • †Glyptotomaria genundewa – type locality for species
  • Fossilized shell of the Middle Devonian nautiloid cephalopod Goldringia
    †Goldringia
    • †Goldringia trivolvis
  • †Gomphoceras
  • †Gomphocysstites
    • †Gomphocysstites tenax – or unidentified comparable form
  • †Gonatocaris
  • †Gondekia
    • †Gondekia lancifer
  • Fossilized shell of the Late Devonian-Late Triassic ammonoid cephalopod Goniatites
    †Goniatites
  • †Gonioceras
    • †Gonioceras anceps
    • †Gonioceras brainerdi
    • †Gonioceras chaziense
    • †Gonioceras multiseptatum
    • †Gonioceras pameliense
    • †Gonioceras quadratum
  • †Goniograptus
  • †Goniophora
    • †Goniophora chemungensis
    • †Goniophora hamiltonensis
    • †Goniophora hamiltoniae
    • †Goniophora rugosa
    • †Goniophora truncata
  • †Goniophoria
    • †Goniophoria chemungensis
  • †Goniostropha
    • †Goniostropha extenuata
  • †Gosseletia
    • †Gosseletia triquetra
  • †Gothocrinus – tentative report
    • †Gothocrinus multibrachiatus
  • †Graciloceras
    • †Graciloceras longidomum
  • †Gramatodon
    • †Gramatodon chemungensis
    • †Gramatodon hamiltoniae
  • †Grammatodon
    • †Grammatodon hamiltoniae
  • †Grammysia
    • †Grammysia alveata
    • †Grammysia arcuata
    • †Grammysia bisulcata
    • †Grammysia elliptica
    • †Grammysia nodocosta
    • †Grammysia obsoleta
    • †Grammysia praecursor
  • †Grammysioidea
    • †Grammysioidea alveata
    • †Grammysioidea arcuata
    • †Grammysioidea constricta
    • †Grammysioidea elliptica – or unidentified comparable form
    • †Grammysioidea globosa
    • †Grammysioidea obsoleta
    • †Grammysioidea subarcuata
  • †Grammysoidea
    • †Grammysoidea arcuata
    • †Grammysoidea bisulcata
    • †Grammysoidea constricta
  • †Graptodictya
  • †Graptospongia
  • Fossil of the Middle-Late Devonian trilobite Greenops
    †Greenops
    • †Greenops boothi
  • †Grinnellaspis
    • †Grinnellaspis marginiata – or unidentified comparable form
  • †Groomodiscus
    • †Groomodiscus calcifer – type locality for species
  • †Gypidula
    • †Gypidula coeymanensis
  • †Gyroceras
    • †Gyroceras paucinodum

H
  • †Habrostroma
    • †Habrostroma centrotum
    • †Habrostroma controtum
    • †Habrostroma microporum
  • †Hadrophyllum
    • †Hadrophyllum woodi
  • †Hagnocrinus
    • †Hagnocrinus corporiculus
  • †Haileyia
  • †Halkieria
  • †Hallinetes
    • †Hallinetes lineatus
    • †Hallinetes setigera
  • Life restoration of the Late Devonian eurypterid ("sea scorpion") Hallipterus
    †Hallipterus
    • †Hallipterus excelsior
  • †Halloceras
    • †Halloceras undulatum
  • †Hallograptus
  • †Hallopora
  • †Halysites
  • †Hanaites
    • †Hanaites platus
  • †Hapsiphyllum
    • †Hapsiphyllum bifurcatum
  • †Haptocrinus
  • Fossil of the Silurian eurypterid ("sea scorpion") Hardieopterus
    †Hardieopterus
    • †Hardieopterus myops
  • †Haskinsia
    • †Haskinsia colophylla
  • †Healdia
    • †Healdia arkonensis – or unidentified comparable form
  • †Hebetoceras
    • †Hebetoceras cylindriforme
    • †Hebetoceras mirandum
  • †Hedeina
    • †Hedeina eudora
    • †Hedeina macropleura
  • †Hedellara
  • †Hederella
  • †Helcionella
    • †Helcionella subrugosa
  • †Heliolites
    • †Heliolites elegans
    • †Heliolites pyriformis
    • †Heliolites spinipora – tentative report
  • †Heliomeroides
    • †Heliomeroides teres
  • †Heliophylloides
    • †Heliophylloides corniculum
  • Fossil of the Middle Devonian horn coral Heliophyllum
    †Heliophyllum
  • †Helopora
    • †Helopora fragilis
    • †Helopora ragilis
  • †Hemiarges
    • †Hemiarges turneri
  • †Hemiaspis
  • †Hemicystites
    • †Hemicystites parasiticus
  • Fossil of the Cambrian trilobite Hemirhodon
    †Hemirhodon
  • †Hennigopora
  • †Hepaticites
    • †Hepaticites devonicus
  • †Hercostrophia
    • †Hercostrophia subcamerata
  • †Hercynella
    • †Hercynella buffaloensis – or unidentified comparable form
  • †Hernodia
  • †Herrmannina
    • †Herrmannina alta
  • †Hertzina
    • †Hertzina elongata
  • †Hesperorthis
    • †Hesperorthis costalis
    • †Hesperorthis ignicula
  • †Heterocrinus
    • †Heterocrinus heterodactylus
  • †Heterophrentis
    • †Heterophrentis complanata
    • †Heterophrentis prolifica
    • †Heterophrentis simplex
  • †Heteroschisma
    • †Heteroschisma canadensis
  • †Hexameroceras
    • †Hexameroceras chadwicki – tentative report
  • †Hibbardia
    • †Hibbardia lacrimosa
  • †Hibbertia
    • †Hibbertia valcourensis
  • †Hindella
  • †Hindia
  • †Hipparionix
  • †Hipparionyx
    • †Hipparionyx proximus – or unidentified comparable form
  • †Hoareicardia
    • †Hoareicardia cunea
  • †Hollinella
    • †Hollinella ampulla – type locality for species
    • †Hollinella epakra – type locality for species
    • †Hollinella plauta
    • †Hollinella retusilobata – type locality for species
    • †Hollinella sella – type locality for species
    • †Hollinella tricollina
  • †Holocystites – tentative report
  • Fossilized shells of the Ordovician-Carboniferous sea snail Holopea
    †Holopea
    • †Holopea obsoleta
    • †Holopea plauta
    • †Holopea plautus
    • †Holopea scrutator
  • †Homalonotus
    • †Homalonotus delphinocephalus
    • †Homalonotus dlephinocephalus
  • †Homalophyllum
    • †Homalophyllum exigum
  • †Homeospira
    • †Homeospira apriniformis
  • †Homocrinus
    • †Homocrinus parvus
  • †Homocystites
    • †Homocystites anatiformis
  • †Homoeospira
    • †Homoeospira apriniformis
  • †Homotrypa
    • †Homotrypa similis
  • †Hormotoma
    • †Hormotoma bilineata – type locality for species
    • †Hormotoma gracilis
    • †Hormotoma micula
    • †Hormotoma simplex
    • †Hormotoma sulcatum
  • †Hostinella
    • †Hostinella silurica
  • †Howellella
    • †Howellella crispa
    • †Howellella cycloptera – or unidentified comparable form
    • †Howellella cyclopterus
    • †Howellella vanuxemi
  • †Hudsonoceras
    • †Hudsonoceras aristos
  • Fossils of the Silurian eurypterid ("sea scorpion") Hughmilleria
    †Hughmilleria
    • †Hughmilleria shawangunk
    • †Hughmilleria socialis
  • †Hungerfordia
    • †Hungerfordia dichotoma
  • †Hyattidina
    • †Hyattidina congesta
  • †Hyboaspis
    • †Hyboaspis depressa
  • †Hyenia
    • †Hyenia banksii
  • †Hyolithellus
    • †Hyolithellus micans
    • †Hyolithellus papillatus – type locality for species
  • Fossilized shells of the Cambrian-Permian brachiopod relative Hyolitha
    †Hyolithes
    • †Hyolithes aclis
    • †Hyolithes americanus
    • †Hyolithes gibbosus
  • †Hypagnostus
  • †Hyperoblastus
    • †Hyperoblastus goldringae
  • †Hypodicranotus
    • †Hypodicranotus striatulus
  • †Hypothyridina
    • †Hypothyridina venestula
    • †Hypothyridina venustula
  • †Hysterolites
    • †Hysterolites perimele
  • †Hystricurus
    • †Hystricurus conicus – or unidentified comparable form
    • †Hystricurus ellipticus

I
  • †Ibyka
    • †Ibyka amphikoma
  • †Ichthyocrinus
    • †Ichthyocrinus laevis
  • †Icriodella
    • †Icriodella superba
  • †Icriodus
    • †Icriodus alternatus
  • †Icthyocrinus
    • †Icthyocrinus conoideus
    • †Icthyocrinus laevis
    • †Icthyocrinus subangulatus
  • †Idiospira – tentative report
    • †Idiospira longa – type locality for species
  • †Illaenoides
  • †Illaenus
    • †Illaenus incertus
    • †Illaenus punctatus
  • †Inocaulis
    • †Inocaulis aborescens
  • †Insolitotheca – type locality for genus
    • †Insolitotheca communis
  • †Intexodictyon
    • †Intexodictyon manliusense – type locality for species
  • Fossil of the Ordovician crinoid ("sea lily") Iocrinus
    †Iocrinus
    • †Iocrinus subcrassus
    • †Iocrinus trentonensis
  • †Iridistrophia
    • †Iridistrophia radiata – or unidentified comparable form
  • †Iridopteris
    • †Iridopteris eriensis
  • †Ischadites
    • †Ischadites planoconvexa
    • †Ischadites planoconvexum
    • †Ischadites planoconvexus
  • †Ischyrodonta
    • †Ischyrodonta unionoides
  • †Ischyrotoma
  • †Isochilina
    • †Isochilina labrosa
  • †Isograptus
  • †Isorthis
    • †Isorthis perelegans
    • †Isorthis proinqua
    • †Isorthis propinqua
  • †Isoteloides
    • †Isoteloides canalis
    • †Isoteloides peri
  • Fossil of the Middle-Late Ordovician giant trilobite Isotelus.
    †Isotelus
    • †Isotelus angusticaudum
    • †Isotelus bearsi
    • †Isotelus canalis
    • †Isotelus gigas
    • †Isotelus gingas
    • †Isotelus harrisi
    • †Isotelus obtusum
    • †Isotelus obtusus
    • †Isotelus simplex
    • †Isotelus walcotti
  • †Ithacadictya – type locality for genus
    • †Ithacadictya cornelli – type locality for species

J
  • †Janusella
  • †Jenningsina
    • †Jenningsina catenulata
  • †Joleaudella
    • †Joleaudella catilloides
  • †Jonesina
    • †Jonesina apoglypha – type locality for species
  • †Jordanopora
    • †Jordanopora heroensis

K
  • †Katabuporhynchus
    • †Katabuporhynchus mesacostalis
  • †Kawina
    • †Kawina chazyensis
  • †Keithiella
  • †Keraiaceras – tentative report
    • †Keraiaceras percostatum
  • †Keriaceras – tentative report
    • †Keriaceras percostatum
  • †Kiaeropterus
    • †Kiaeropterus otisius
  • Fossilized shells of the Middle Ordovician-Permian nautiloid cephalopod Kionoceras
    †Kionoceras
    • †Kionoceras cancellatum
    • †Kionoceras erraticum – type locality for species
    • †Kionoceras infrequens – type locality for species
    • †Kionoceras polyplicatum – type locality for species
    • †Kionoceras profundum
    • †Kionoceras valcourense – type locality for species
  • †Kirkbyella
    • †Kirkbyella tora – type locality for species
    • †Kirkbyella unicornis
    • †Kirkbyella verticalis
  • †Kitikamispira
    • †Kitikamispira concinna – type locality for species
    • †Kitikamispira hamiltoniae
  • †Kloedenella
  • †Kloedenia
  • †Knorria
    • †Knorria chemungensis
  • †Knoxiella
    • †Knoxiella reticulata – type locality for species
  • †Kockelella
    • †Kockelella ortus
    • †Kockelella ranuliformis
    • †Kockelella walliseri
  • †Koenenia
    • †Koenenia emarginata
  • †Koenenites
    • †Koenenites beckeri – type locality for species
    • †Koenenites cooperi
    • †Koenenites fasciculatus
    • †Koenenites styliophilus – type locality for species
  • †Kophinocrinus
    • †Kophinocrinus spiniferous
    • †Kophinocrinus spiniferus
  • †Kozlowskiellina
    • †Kozlowskiellina perlamellosa
  • †Kyphosocrinus
    • †Kyphosocrinus tetreaulti

L
  • †Labechia
    • †Labechia eatoni
    • †Labechia prima – type locality for species
    • †Labechia pustulosa – or unidentified comparable form
    • †Labechia valcourensis – type locality for species
  • †Lambeophyllum
    • †Lambeophyllum profundum
  • †Lamottoceras
    • †Lamottoceras franklini
  • †Lamottopora
    • †Lamottopora duncanae
  • †Lapworthella
    • †Lapworthella schodakensis
  • †Lasiocrinus
    • †Lasiocrinus scoparius
  • †Laurentoscandodus
    • †Laurentoscandodus triangularis
    • †Laurentoscandodus triangulatus
  • †Lawrenceoceras
    • †Lawrenceoceras breve
    • †Lawrenceoceras confertissimum
  • †Lecanocrinus
    • †Lecanocrinus macropetalus
    • †Lecanocrinus magnaradialis
    • †Lecanocrinus pusillus – or unidentified comparable form
  • †Lecanospira
    • †Lecanospira compacta
  • Fossils of the Middle Devonian clubmoss Leclercqia
    †Leclercqia
    • †Leclercqia complexa
  • †Leidosigillaria – or unidentified comparable form
  • †Leioclema
    • †Leioclema aspera
    • †Leioclema asperum
    • †Leioclema confertiporum
    • †Leioclema decipiens
    • †Leioclema florida
  • †Leiocorphyge – tentative report
    • †Leiocorphyge lobata – type locality for species
  • †Leiocoryphe – tentative report
    • †Leiocoryphe lobata
  • †Leiopyge
  • †Leiorhynchus
    • †Leiorhynchus laura
    • †Leiorhynchus limitare
    • †Leiorhynchus limitaris
    • †Leiorhynchus mesacarina
    • †Leiorhynchus multicostum
    • †Leiorhynchus multiscostum – tentative report
    • †Leiorhynchus quadracostata
    • †Leiorhynchus quadracostatus
    • †Leiorhynchus quadricostatum
    • †Leiorhynchus sinuata
    • †Leiorhynchus sinuatum
    • †Leiorhynchus ventricosum
  • †Leperditia
    • †Leperditia alta
    • †Leperditia canadensis
    • †Leperditia fabulites
    • †Leperditia limatula
    • †Leperditia nana
    • †Leperditia scalaris
  • †Lepidocoleus
    • †Lepidocoleus jamesi
  • Restoration of the Carboniferous-Late Triassic club moss relative Lepidodendron. Eli Heimans (1911).
    †Lepidodendron
    • †Lepidodendron chemungense
  • †Lepidosigillaria
    • †Lepidosigillaria whitei
  • †Lepocrinites
    • †Lepocrinites gebhardi
    • †Lepocrinites gebhardii
  • †Leptaean
    • †Leptaean rhomboidalis – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Leptaena
    • †Leptaena moniquensis
    • †Leptaena ordovicica
    • †Leptaena rhomboidalis
  • †Leptaenisca
  • †Leptobolus
    • †Leptobolus insigna
    • †Leptobolus insignis
  • †Leptochilodiscus
  • †Leptocoelia
    • †Leptocoelia flabellites
  • †Leptodesma
    • †Leptodesma bigsbyi
    • †Leptodesma billingsi
    • †Leptodesma clitus
    • †Leptodesma conradi
    • †Leptodesma dekayi
    • †Leptodesma extenuatum
    • †Leptodesma jason
    • †Leptodesma laevis
    • †Leptodesma lichas
    • †Leptodesma mathori
    • †Leptodesma mesacostalis
    • †Leptodesma mortoni
    • †Leptodesma naviforme
    • †Leptodesma nitida
    • †Leptodesma potens
    • †Leptodesma propinquum
    • †Leptodesma rafinesqui
    • †Leptodesma rhomboidea
    • †Leptodesma rhomboideum
    • †Leptodesma sayi
    • †Leptodesma spinerigum
    • †Leptodesma spinigerum
    • †Leptodesma striatula
    • †Leptodesma striatus
    • †Leptodesma subplana
    • †Leptodesma torregi
    • †Leptodesma waviformes
  • †Leptograptus
    • †Leptograptus annectans
  • Leptospira
    †Leptospira
    • †Leptospira gibbosa
  • †Leptostrophia
    • †Leptostrophia beckii
    • †Leptostrophia bipartita
    • †Leptostrophia planulata
  • †Leptotrypella
    • †Leptotrypella amplectens
    • †Leptotrypella asterica
    • †Leptotrypella multitecta
  • †Levenea
    • †Levenea subcarinata
  • †Levenia
    • †Levenia lenticularis
  • Life restoration of the Early Ordovician nautiloid cephalopod Levisoceras
    †Levisoceras
  • †Liacalymene
  • †Lichenalia
    • †Lichenalia concentrica
  • †Lichenocrinus
  • †Lidstroemella
    • †Lidstroemella aspidum
  • †Limoptera
    • †Limoptera macroptera
  • †Limuloides – tentative report
  • †Linguatornoceras
    • †Linguatornoceras linguum – or unidentified related form
  • †Linguella
    • †Linguella granvillensis – or unidentified comparable form
  • †Lingula
    • †Lingula allingi – type locality for species
    • †Lingula clintoni
    • †Lingula complanata
    • †Lingula curta
    • †Lingula densa
    • †Lingula desiderata
    • †Lingula lamellata
    • †Lingula oblata
    • †Lingula procne
    • †Lingula punctata
    • †Lingula riciniformis
    • †Lingula semina
    • †Lingula spatulata
    • †Lingula vicina
  • †Lingulapholis – tentative report
  • Illustration of a fossilized shell of the Cambrian-Late Ordovician brachiopod Lingulella
    †Lingulella
    • †Lingulella brainerdi
    • †Lingulella columba
    • †Lingulella granvillensis
    • †Lingulella prima
  • †Lingulepis
    • †Lingulepis acuminata
  • †Linnarssonia
  • †Linoporella
  • †Liocalymene
    • †Liocalymene clintonensis
    • †Liocalymene clintoni
    • †Liocalymene niagarensis
  • †Liomphalus
    • †Liomphalus disjunctus
  • †Liospira
    • †Liospira americana
  • †Lobobactrites
    • †Lobobactrites clavus
  • †Lobotornoceras
    • †Lobotornoceras hassoni – or unidentified related form
  • †Loculipora
    • †Loculipora perforata
  • †Logocrinus
    • †Logocrinus geniculatus
  • †Lonchocephalus
    • †Lonchocephalus calciferus
  • Fossil of the Ordovician trilobite Lonchodomas
    †Lonchodomas
    • †Lonchodomas chaziensis
    • †Lonchodomas halli
  • †Longispina
    • †Longispina mucronata
    • †Longispina mucronatus
  • †Longstaffia
    • †Longstaffia pulchra
  • †Lophospira
    • †Lophospira billingsi
    • †Lophospira perangulata
    • †Lophospira rectistriata
    • †Lophospira ventricosa
  • †Loxodus
    • †Loxodus bransoni
  • †Loxonema
    • †Loxonema bertiense – tentative report
    • †Loxonema postremum
  • †Loxophragma
    • †Loxophragma lechrium
  • †Loxoplocus
    • †Loxoplocus gothlandicus – type locality for species
  • †Lucasella – tentative report
    • †Lucasella spinulifera
  • †Lunulacardium
    • †Lunulacardium curtum
    • †Lunulacardium marcellense
    • †Lunulacardium ornatum
  • †Luprisca – type locality for genus
  • †Lyriocrinus
    • †Lyriocrinus dactylus
  • †Lyriopecten
    • †Lyriopecten orbiculatus
  • †Lyrodesma
    • †Lyrodesma poststriatum

M
  • †Macgeea
    • †Macgeea ponderosa – type locality for species
  • †Machaeraria
  • †Mackinnonia
    • †Mackinnonia rostratum – type locality for species
    • †Mackinnonia taconica – type locality for species
  • †Macluritella
    • †Macluritella imperfecta – type locality for species
    • †Macluritella multiseptarius – type locality for species
    • †Macluritella uniangulata
  • †Maclurites
    • †Maclurites magnus
  • †Macrochilina
    • †Macrochilina pygmaea
    • †Macrochilina seneca
  • †Macrocoelia
    • †Macrocoelia champlainensis
    • †Macrocoelia ruedemanni
  • †Macropleura
    • †Macropleura eudora
    • †Macropleura macropleura
  • †Macrostylocrinus
    • †Macrostylocrinus fusibrachiatus
    • †Macrostylocrinus granulosus – or unidentified comparable form
    • †Macrostylocrinus ornatus
  • †Maeneceras
    • †Maeneceras acutolaterale – or unidentified related form
  • †Malocystites
    • †Malocystites emmonsi
    • †Malocystites murchisoni
  • †Manticeras
  • Fossilized shell of the Devonian ammonoid cephalopod Manticoceras
    †Manticoceras
    • †Manticoceras contractum
    • †Manticoceras lamed
    • †Manticoceras nodifer
    • †Manticoceras sinuosum
  • †Mariacrinus – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Mariacrinus stoloniferus
  • †Marsupiocrinus
    • †Marsupiocrinus tentaculatus
  • †Mastigobolbina
    • †Mastigobolbina clarkei
    • †Mastigobolbina decora
    • †Mastigobolbina incipiens
    • †Mastigobolbina lata
    • †Mastigobolbina punctata
    • †Mastigobolbina retifera
    • †Mastigobolbina trilobata
    • †Mastigobolbina trilobatus
    • †Mastigobolbina trilobita
    • †Mastigobolbina typus
    • †Mastigobolbina vanuxemi
  • †Mastigograptus
  • †Matherella – type locality for genus
    • †Matherella saratogensis
  • Fossilized plates of the Cambrian-Early Ordovician chiton Matthevia
    †Matthevia
  • †Mccluskiceras – type locality for genus
    • †Mccluskiceras comstockense – type locality for species
  • †Mclearnites
  • †Mcqueenoceras
    • †Mcqueenoceras jeffersonense – or unidentified related form
  • †Meadowtownella
    • †Meadowtownella trentonensis
  • †Mediospirifer
    • †Mediospirifer angustus
    • †Mediospirifer audaculus
    • †Mediospirifer mucronatus
  • †Medusaegraptus
    • †Medusaegraptus graminiformis
  • †Medusagraptus
  • †Megakozlowkiella
    • †Megakozlowkiella sculptilis
  • †Megakozlowskiella
    • †Megakozlowskiella perlamellosa – or unidentified comparable form
    • †Megakozlowskiella raricosta
    • †Megakozlowskiella sculptilis
    • †Megakozlowskiella sculptis
  • †Megambonia
    • †Megambonia aviculoidea
  • †Meganterella
    • †Meganterella finksi
  • †Megastrophia
    • †Megastrophia concava
    • †Megastrophia hemisphaerica
    • †Megastrophia hemispherica
    • †Megastrophia hemisphericus
    • †Megastrophia profunda
  • †Megastylia
  • †Megistocrinus
    • †Megistocrinus depressus
  • †Mellopegma – tentative report
    • †Mellopegma georginensis – tentative report
  • †Melocrinus
    • †Melocrinus ornatus – type locality for species
  • †Mendacella
  • †Meniscoceras
    • †Meniscoceras coronense
  • †Menoeidina
    • †Menoeidina multipuncata – type locality for species
    • †Menoeidina versicula – type locality for species
  • Illustration (lower right, entry 15) of a fossilized shell in front and side views of the Silurian-Late Devonian brachiopod Meristella
    †Meristella
    • †Meristella arcuata
    • †Meristella barissi
    • †Meristella barrisi
    • †Meristella doris
    • †Meristella haskinsi
    • †Meristella laevis
    • †Meristella nasuta
    • †Meristella praenuntia
    • †Meristella princeps
    • †Meristella scitula
  • †Meristina
    • †Meristina nasuta
  • †Merocrinus
    • †Merocrinus corroboratus
    • †Merocrinus typus
  • †Mesocoelia
    • †Mesocoelia gregaria – or unidentified comparable form
  • †Mesodouvillina
    • †Mesodouvillina varistriata
  • †Mesoleptosrophia
    • †Mesoleptosrophia junia
  • †Mesoleptostrophia
    • †Mesoleptostrophia junia
  • †Mesopalaeaster – tentative report
    • †Mesopalaeaster lanceolatus
  • †Mesotrypa
    • †Mesotrypa numiformis
    • †Mesotrypa nummiformis
  • †Metabaltoceras – type locality for genus
    • †Metabaltoceras fusiforme – type locality for species
  • †Metaconularia
  • †Metaplasia
    • †Metaplasia minuta
  • †Metriophyllum
  • †Michelia
    • †Michelia whiteavesi – type locality for species
  • †Michelinia
    • †Michelinia stylopora
  • †Michelinoceras
    • †Michelinoceras aldenense
    • †Michelinoceras rigidum
  • †Microchilina
  • †Microcyclus
  • †Microdisca
  • †Micromitra
  • †Mictophyllum
    • †Mictophyllum orientalis – type locality for species
  • †Millardicurus
  • †Mimella
    • †Mimella borealis
    • †Mimella vulgaris
  • †Mirabiloceras
    • †Mirabiloceras multitubulatum
  • †Missisquoia
    • †Missisquoia typicalis
  • †Mitroceras
  • Fossil of the Silurian eurypterid ("sea scorpion") Mixopterus
    †Mixopterus
  • †Modiella
    • †Modiella pygmaea
  • †Modiodesma
    • †Modiodesma modiolare
  • †Modiolopsis
    • †Modiolopsis anodontoides
    • †Modiolopsis exanimis
    • †Modiolopsis fabaformis
    • †Modiolopsis modiolaris
    • †Modiolopsis orthoconcavus – type locality for species
    • †Modiolopsis ovata
    • †Modiolopsis subalata
    • †Modiolopsis subalatus
    • †Modiolopsis subcarinata
    • †Modiolopsis subcarinatus
  • †Modiomorpha
    • †Modiomorpha chemungensis
    • †Modiomorpha concentrica
    • †Modiomorpha mutiloides
    • †Modiomorpha mytiloides
    • †Modiomorpha pygmaea
    • †Modiomorpha quadrula
    • †Modiomorpha subalata
  • †Modiomorphia
    • †Modiomorphia alta
    • †Modiomorphia concentrica
    • †Modiomorphia mytiloides
  • †Monoceratina
    • †Monoceratina casei
  • †Monodechenella
    • †Monodechenella macrocephala
    • †Monodechenella macrocephalus
  • Fossils of the Early Devonian graptolite Monograptus
    †Monograptus
    • †Monograptus clintonensis
  • †Monotrypa
    • †Monotrypa benjamini
    • †Monotrypa osgoodensis – or unidentified comparable form
  • †Monotrypella
    • †Monotrypella abrupta – tentative report
    • †Monotrypella arbuscula – tentative report
  • †Montyoceras
    • †Montyoceras arcuatum
    • †Montyoceras curviseptatum
    • †Montyoceras titaniforme
  • †Moorea
  • †Morania
  • †Mourlonia
    • †Mourlonia filitexta
    • †Mourlonia plena
    • †Mourlonia rugulata
    • †Mourlonia subzona – type locality for species
  • †Mucopraeca
    • †Mucopraeca multicostata – type locality for species
  • Fossilized shell of the Devonian brachiopod Mucrospirifer
    †Mucrospirifer
  • †Mucrospirifier
    • †Mucrospirifier mucronatus
  • †Mucrspirifer
    • †Mucrspirifer mucronatus
  • †Mulceodens
    • †Mulceodens eboraceus – type locality for species
  • †Multicostella
    • †Multicostella platys
  • †Murchisonia
    • †Murchisonia micula
    • †Murchisonia subulata
  • †Muscrospirifer
    • †Muscrospirifer mucronatus
  • †Myalina – tentative report
    • †Myalina newelli
  • †Myelodactylus
    • †Myelodactylus convolutus
    • †Myelodactylus linae
  • †Mytilarca
    • †Mytilarca mytiliformis
    • †Mytilarca oviformis
  • †Mytilops
    • †Mytilops praecedens

N
  • †Nanahughmilleria
    • †Nanahughmilleria clarkei
    • †Nanahughmilleria prominens
  • †Nanillaenus
    • †Nanillaenus americanus
  • †Nanno
    • †Nanno noveboracum
  • †Nanothyris
    • †Nanothyris subglobosa – or unidentified comparable form
  • †Naplesites
    • †Naplesites naplesense
  • †Naticonema
  • Fossilized shell of the Early Devonian – Triassic sea snail Naticopsis
    †Naticopsis
  • †Navispira – tentative report
  • †Nemagraptus
  • †Nematopora
    • †Nematopora ovalis
    • †Nematopora raripora
  • †Neoaxon
  • †Neokloedenella
  • †Neozaphrentis
  • †Nephriticeras
    • †Nephriticeras metula
  • †Nervostrophia
    • †Nervostrophia nervosa
    • †Nervostrophia plana
    • †Nervostrophia tulliensis
  • †Newportopora
    • †Newportopora typicalis
  • †Niagaracrinus
    • †Niagaracrinus kopfi
  • †Nicholsonella
    • †Nicholsonella florida
  • †Nieszkowskia – tentative report
    • †Nieszkowskia satyrus
  • †Nileoides
    • †Nileoides perkinsi
  • †Niobe
  • Illustrations of fossilized foliage of the Carboniferous-Permian plant Noeggerathia
    †Noeggerathia
    • †Noeggerathia gilboensis
  • †Nowakia
    • †Nowakia otomari
  • †Nucleocrinus
  • †Nucleospira
    • †Nucleospira concinna
    • †Nucleospira pisiformis
    • †Nucleospira ventricosa
    • †Nucleospira ventricosta
  • Nucula
  • Nuculana
  • †Nucularca
    • †Nucularca lorrainensis
    • †Nucularca pectunculoides
  • †Nuculites
    • †Nuculites lamellata
    • †Nuculites nyassa
    • †Nuculites nyssa
    • †Nuculites oblongatus
    • †Nuculites scitulus
    • †Nuculites triqueter
    • †Nuculites triquiter
  • Nuculoidea
    †Nuculoidea
    • †Nuculoidea corbuliformis
    • †Nuculoidea deceptriformis – type locality for species
    • †Nuculoidea lirata
  • †Nyassa
    • †Nyassa arguata
    • †Nyassa arguta
    • †Nyassa dorsata
  • †Nybyoceras
    • †Nybyoceras cryptum
  • †Nylanderina
    • †Nylanderina goldringae

O
  • Illustration of fossils of the Cambrian brachiopod Obolella
    †Obolella
  • †Obolus
  • †Octonaria
    • †Octonaria bifurcata – type locality for species
  • †Odontocephalus
    • †Odontocephalus selenurus
  • †Odontochile
    • †Odontochile micrurus
  • Restoration of the Late Ordovician-Middle Devonian trilobite Odontopleura
    †Odontopleura
  • †Oepikina
  • †Oepikodus
    • †Oepikodus communis
  • †Oistodus
    • †Oistodus eutyphus
    • †Oistodus venustus
  • †Olenellus
  • †Olenoides
  • †Omospira
    • †Omospira trentonensis
  • †Oncoceras
    • †Oncoceras constrictum
    • †Oncoceras pristinum
    • †Oncoceras subrectum
  • †Oneotodus – report made of unidentified related form or using admittedly obsolete nomenclature
    • †Oneotodus cavus
  • †Onoceras
  • †Ontaria
  • †Onychoplecia
    • †Onychoplecia longirostris
  • †Oonoceras
    • †Oonoceras perkinsi
    • †Oonoceras seelyi
  • †Ophileta
    • †Ophileta discus – type locality for species
  • †Opsiconidion
    • †Opsiconidion praecursor – or unidentified comparable form
  • †Orbiculoidea
    • †Orbiculoidea lodensis
    • †Orbiculoidea lodiensis
    • †Orbiculoidea molina
    • †Orbiculoidea newberryi
    • †Orbiculoidea tenuistriata
    • †Orbiculoidea truncata
    • †Orbiculoidea vanuxemi – or unidentified comparable form
  • †Orbignyella
  • †Ordogeisonoceras
    • †Ordogeisonoceras amplicameratum
  • †Ormoceras
    • †Ormoceras centrale – type locality for species
    • †Ormoceras champlainense – type locality for species
    • †Ormoceras schohariae – type locality for species
  • †Orthambonites
    • †Orthambonites acutiplicatus
    • †Orthambonites exfoliata
  • †Orthidium
    • †Orthidium lamellosa
    • †Orthidium lamellosum
  • †Orthis
    • †Orthis flabellites
    • †Orthis lepidus
    • †Orthis perveta
    • †Orthis praeumbona
    • †Orthis punctostriata
    • †Orthis tenuidens
  • †Orthoceras
    • †Orthoceras abruptum
    • †Orthoceras aristides
    • †Orthoceras bassleri
    • †Orthoceras clavatum
    • †Orthoceras lativentrum
    • †Orthoceras lentum
    • †Orthoceras limulurus
    • †Orthoceras luxum
    • †Orthoceras missisquoi
    • †Orthoceras modestum
    • †Orthoceras multicameratum
    • †Orthoceras progressum
    • †Orthoceras rectiannulatum
    • †Orthoceras sayi
    • †Orthoceras vagum
    • †Orthoceras virgulatum
  • †Orthodesma
    • †Orthodesma curtum
    • †Orthodesma pulaskiense
  • †Orthograptus
    • †Orthograptus pageanus
    • †Orthograptus quadrimucronatus
    • †Orthograptus rivai
    • †Orthograptus ruedemanni
  • †Orthonota
    • †Orthonota carinata
    • †Orthonota parvula
    • †Orthonota undulata
  • †Orthonychia
    • †Orthonychia concavum
    • †Orthonychia conicum
    • †Orthonychia dentalium
  • †Orthospirifer
    • †Orthospirifer mesastrialis
    • †Orthospirifer mesastrialus
    • †Orthospirifer mesatrialis
  • †Orthostrophia
    • †Orthostrophia fasciata
  • †Orthotetes
  • †Otarion
    • †Otarion spinicaudatum
  • †Oulodus
    • †Oulodus petila
  • †Ovoceras
  • †Ozarkina
  • †Ozarkodina

P
  • †Pachecdyceras
    • †Pachecdyceras murale
  • †Pachydicta
    • †Pachydicta crassa
  • †Pachydictya
    • †Pachydictya acuta
    • †Pachydictya crassa
    • †Pachydictya sheldonensis
  • †Pachyphyllum
    • †Pachyphyllum crassicostatum
    • †Pachyphyllum woodmani
  • †Pachystrophia – tentative report
  • †Pachystylostroma
    • †Pachystylostroma champlainense – type locality for species
    • †Pachystylostroma goodsellense
    • †Pachystylostroma vallum
  • Fossil of the trilobite Paciphacops
    †Paciphacops
    • †Paciphacops logani
  • †Paedeumias
  • †Paeeumias
  • †Pagetides
    • †Pagetides elagans
  • †Pagodia
    • †Pagodia seelyi – type locality for species
  • †Palaeacmaea
    • †Palaeacmaea expansa – type locality for species
    • †Palaeacmaea typica
  • †Palaeactina
  • †Palaeaster
    • †Palaeaster niagarensis
  • †Palaeocapulus
    • †Palaeocapulus acutirostre
  • †Palaeocaris – tentative report
    • †Palaeocaris cuylerensis – type locality for species
  • †Palaeocyclus
    • †Palaeocyclus ratuloides
    • †Palaeocyclus rotuloides
  • †Palaeocystites
    • †Palaeocystites tenuiradiatus
  • †Palaeodictyota
  • †Palaeoglossa
    • †Palaeoglossa belli
    • †Palaeoglossa perovata
  • †Palaeoneilo
    • †Palaeoneilo angusta
    • †Palaeoneilo augusta
    • †Palaeoneilo bisulcata
    • †Palaeoneilo brevis
    • †Palaeoneilo congregata
    • †Palaeoneilo constricta
    • †Palaeoneilo contracta
    • †Palaeoneilo crassa
    • †Palaeoneilo elongata
    • †Palaeoneilo emarginata
    • †Palaeoneilo fecunda
    • †Palaeoneilo filosa
    • †Palaeoneilo maxima
    • †Palaeoneilo muta
    • †Palaeoneilo plana
    • †Palaeoneilo rudis
    • †Palaeoneilo tenuistriata
  • Life restoration of the Silurian-Devonian scorpion Palaeophonus
    †Palaeophonus
    • †Palaeophonus osborni – type locality for species
  • †Palaeophycus
    • †Palaeophycus striatum
  • †Palaeophyllum
    • †Palaeophyllum multicaule
  • †Palaeopinna
    • †Palaeopinna flabellum
  • †Palaeosaccus
  • †Palaeosolen
  • †Palaeosolon
    • †Palaeosolon siliqui
  • †Palaeozygopleura
    • †Palaeozygopleura attenuata
    • †Palaeozygopleura delphicola
    • †Palaeozygopleura hamiltoniae
    • †Palaeozygopleura laxa – type locality for species
    • †Palaeozygopleura multiplicata – type locality for species
    • †Palaeozygopleura noe – type locality for species
    • †Palaeozygopleura sicula
    • †Palaeozygopleura styliola – type locality for species
  • †Palaeschara
    • †Palaeschara incrustans
  • †Palaozygopleura
    • †Palaozygopleura hamiltoniae
  • †Paleoclosterium
    • †Paleoclosterium leptum
  • †Paleocystites
    • †Paleocystites tenuiradiatus
  • †Paleodictyota
  • †Paleodidymoprium
    • †Paleodidymoprium didymum
  • †Paleooedogonium
    • †Paleooedogonium micrum
  • †Paleophycus
    • †Paleophycus striatum
  • †Paleozygopleura
    • †Paleozygopleura delphicola
  • †Paleschara
    • †Paleschara radiata
  • †Palmatolepis
  • †Panderodus
    • †Panderodus panderi – or unidentified comparable form
    • †Panderodus unicostatus
  • †Panenka
    • †Panenka hero
    • †Panenka retusa
  • †Parabolbina
  • †Parabufina
    • †Parabufina convexa
    • †Parabufina subovalis
  • Fossil of the Silurian-Early Devonian eurypterid ("sea scorpion") Paracarcinosoma
    †Paracarcinosoma
    • †Paracarcinosoma scorpionis
  • †Paracardium
    • †Paracardium doris
  • †Paraceraurus
    • †Paraceraurus ruedemanni
  • †Paracolocrinus
    • †Paracolocrinus paradoxicus
  • †Paraconularia
  • †Paracyclas
    • †Paracyclas arguta
    • †Paracyclas devoniana
    • †Paracyclas elliptica
    • †Paracyclas lirata
    • †Paracyclas rowleyi
    • †Paracyclas rugosa
    • †Paracyclas tenuis
  • †Paradakeoceras
    • †Paradakeoceras minor
    • †Paradakeoceras planiventrum
  • †Paraechmina
    • †Paraechmina postica
    • †Paraechmina spinosa
  • †Paraendoceras
    • †Paraendoceras depressum – type locality for species
    • †Paraendoceras wappingerense – type locality for species
  • Fossils of the Silurian-Middle Devonian eurypterid ("sea scorpion") Parahughmilleria
    †Parahughmilleria
    • †Parahughmilleria maria
  • †Parallelodon
    • †Parallelodon hamiltoniae
  • †Parallelopora
  • †Parallelostroma
    • †Parallelostroma foveolatum
    • †Parallelostroma microporum – type locality for species
  • †Parapanderodus
    • †Parapanderodus striatus
  • †Paraparchites
    • †Paraparchites asymmetrica – type locality for species
  • †Paraplethopeltis
    • †Paraplethopeltis carinfera – type locality for species
  • †Paraschmidtella
    • †Paraschmidtella paralobata
  • †Paraserratodontus
    • †Paraserratodontus costatus
  • Assemblage of the Early-Middle Devonian brachiopod Paraspirifer
    †Paraspirifer
    • †Paraspirifer acuminatus
  • †Parastrophina
  • †Parazyga
    • †Parazyga hirsuta
  • †Parodiceras
    • †Parodiceras discoideum
  • †Paterula
  • †Paucicrura
    • †Paucicrura rogata
  • †Paupospira
    • †Paupospira bowdeni
  • †Pelagiella
    • †Pelagiella minutissima
    • †Pelagiella primaeva
  • †Pentagonia
    • †Pentagonia unisulcata
  • †Pentamerella
    • †Pentamerella arata
    • †Pentamerella aruta
    • †Pentamerella pavilionensis
    • †Pentamerella pavillionensis
    • †Pentamerella pericosta
    • †Pentamerella petoskyensis
  • †Pentamerus
    • †Pentamerus oblongus
    • †Pentamerus ovalis
  • †Periechocrinites
  • Fossil of the Silurian-Carboniferous crinoid ("sea lily") Periechocrinus
    †Periechocrinus
    • †Periechocrinus speciosus – or unidentified comparable form
  • †Periodon
    • †Periodon grandis
    • †Periodon primum
  • †Perissocrinus – type locality for genus
    • †Perissocrinus papillatus – type locality for species
  • †Peronopsis
    • †Peronopsis evansi – type locality for species
    • †Peronopsis primigenea – or unidentified comparable form
  • †Perotrilites
    • †Perotrilites conatus – or unidentified comparable form
  • †Petasotheca – type locality for genus
    • †Petasotheca minuta – type locality for species
  • †Petigurus
    • †Petigurus ellipticus – type locality for species
  • †Petrocrania
    • †Petrocrania hamiltoniae
    • †Petrocrania prona
  • Fossil of the Devonian trilobite Phacops rana
    †Phacops
    • †Phacops cristata
    • †Phacops triculcatus
    • †Phacops trisulcata
    • †Phacops trisulcatus
  • †Phaenopora
    • †Phaenopora clintoni
    • †Phaenopora constellata
    • †Phaenopora ensiformis
    • †Phaenopora explanata
  • †Phakelodus
    • †Phakelodus terashimai
  • †Phanerotrema
    • †Phanerotrema labrosa – type locality for species
  • †Pharciceras
    • †Pharciceras amplexum
  • †Phestia
    • †Phestia diversa
    • †Phestia rostellata
  • †Philhedra
  • †Phipidomella
    • †Phipidomella vanuxemi
  • †Phlyctiscapha
    • †Phlyctiscapha subovata
  • †Phoenixites
    • †Phoenixites concentricus
  • †Pholadella
    • †Pholadella radiata
    • †Pholadella radiatus
  • †Pholadomorpha
    • †Pholadomorpha pholadiformis
  • †Pholidops
    • †Pholidops linguloides
    • †Pholidops squamiformis
    • †Pholidops squammiformis
  • †Pholidostrophia
    • †Pholidostrophia nacrea
    • †Pholidostrophia ovata
  • †Phorocephala
    • †Phorocephala setoni
  • †Phragmoceras
  • †Phragmodus
    • †Phragmodus undatus
  • †Phragmolites
    • †Phragmolites compressus
  • †Phragmosphaera – type locality for genus
    • †Phragmosphaera incisus
    • †Phragmosphaera lyra – type locality for species
    • †Phragmosphaera natator
    • †Phragmosphaera triliratus – or unidentified comparable form
  • †Phthonia
    • †Phthonia cylindrica
  • Fossil of the Early Ordovician graptolite Phyllograptus
    †Phyllograptus
  • †Phylloporina
    • †Phylloporina asperatastriata
    • †Phylloporina asperatostriata
    • †Phylloporina asperostriata
    • †Phylloporina incepta
  • †Physemataspis
    • †Physemataspis insularis
  • †Pionoceras
    • †Pionoceras pomponium
    • †Pionoceras vokesi
  • †Pionodema
  • †Pisocrinus
  • †Pittsfordipterus
    • †Pittsfordipterus phelpsae
  • †Placentella
    • †Placentella elliptica – or unidentified comparable form
  • †Placoblastus
    • †Placoblastus lucina
  • †Plaesiomys
    • †Plaesiomys iphigenia
    • †Plaesiomys strophomenoides
  • †Platillaenus
    • †Platillaenus erastusi
  • Fossilized shell of the Silurian-Early Triassic sea snail Platyceras
    †Platyceras
    • †Platyceras angulatum
    • †Platyceras argo
    • †Platyceras carinatum
    • †Platyceras desmatum
    • †Platyceras erectum
    • †Platyceras gebhardi
    • †Platyceras hemisphericum
    • †Platyceras lineata
    • †Platyceras lineatum
    • †Platyceras niagarense
    • †Platyceras niagarensis
    • †Platyceras rarispinum
    • †Platyceras reflexum
    • †Platyceras rictum
    • †Platyceras turbinata
    • †Platyceras unisulcata
    • †Platyceras ventricosum
    • †Platyceras ventricosus
  • †Platyorthis
    • †Platyorthis planoconvexa
  • †Platyrachella
  • †Platyrochella
  • Fossilized shell of the Middle Ordovician-Silurian brachiopod Platystrophia
    †Platystrophia
    • †Platystrophia biforata
    • †Platystrophia biforatus
    • †Platystrophia longicardinalis
    • †Platystrophia lynx
    • †Platystrophia robusta
  • †Playfordites
    • †Playfordites tripartitus – or unidentified comparable form
  • †Plectambonites
  • †Plectatrypa
    • †Plectatrypa nodostriata
  • †Plectoceras
    • †Plectoceras jason
    • †Plectoceras jasoni
  • †Plectodina
  • †Plectodonta
  • †Plectonotus
    • †Plectonotus boucoti
    • †Plectonotus trilobita
  • †Plectorthis
    • †Plectorthis exfoliata
  • †Plectostroma
    • †Plectostroma micum
  • †Plethobolbina
    • †Plethobolbina typicalis
  • †Plethopeltis
    • †Plethopeltis obtusus
  • †Plethorhyncha
  • †Plethorhynchia
  • †Plethorthis
  • †Plethospira
    • †Plethospira cassina – type locality for species
  • Fossil of the Silurian-Carboniferous tabulate coral Pleurodictyum
    †Pleurodictyum
    • †Pleurodictyum americanum
    • †Pleurodictyum convexa
    • †Pleurodictyum convexum
    • †Pleurodictyum cylindricum
    • †Pleurodictyum cylindricus
    • †Pleurodictyum dividua
    • †Pleurodictyum stylopora
  • †Pleuronotus
    • †Pleuronotus decewi
    • †Pleuronotus tioga – type locality for species
  • †Pleurorima
    • †Pleurorima kayseri – type locality for species
  • Fossilized shell of a Pleurotomaria slit snail
    Pleurotomaria
    • †Pleurotomaria apicialis – type locality for species
  • †Plicanoplia
  • †Plicoplasia
  • †Plinthokonion – tentative report
    • †Plinthokonion psamminon – type locality for species
  • †Pliomerops
    • †Pliomerops canadensis
  • †Plumalina
  • †Podolella
  • †Pojetaconcha
    • †Pojetaconcha beecheri
  • †Pojetaia
  • †Poleumita
    • †Poleumita crenulata
    • †Poleumita vernonensis – type locality for species
  • Various conodont elements of Polygnathus
    †Polygnathus
  • †Polygyrata
    • †Polygyrata hunterensis – type locality for species
  • †Polyplacognathus
    • †Polyplacognathus ramosa
  • †Polyplectella
    • †Polyplectella mira
  • †Polypora
    • †Polypora incepta
  • †Ponderodictya
    • †Ponderodictya punctulifera
  • †Ponticeras
    • †Ponticeras perlatum
  • †Pontobdellopsis
  • †Poteriocrinus
    • †Poteriocrinus dignatus
  • †Praecardium
  • †Praematuratropis – type locality for genus
    • †Praematuratropis ovatus – type locality for species
  • †Praewaagenoconcha
    • †Praewaagenoconcha speciosa
  • †Prasopora
    • †Prasopora lenticularis
    • †Prasopora sardesoni
    • †Prasopora similatrix
    • †Prasopora simulatrix
  • †Primaspis
    • †Primaspis crosotus
    • †Primaspis trentonensis
  • †Primitia
  • †Primitiella
    • †Primitiella unicornis
  • †Primitiopsis
    • †Primitiopsis punctulifera
  • †Prionothyris
    • †Prionothyris diobolaris
  • †Prismostylus
    • †Prismostylus fibratum
  • †Pristeroceras
    • †Pristeroceras timidum
  • †Probeloceras
    • †Probeloceras lutheri
  • †Probillingsites
    • †Probillingsites inflatus – type locality for species
  • †Prochorites
    • †Prochorites alveolatus
  • †Productella
    • †Productella arctirostrata
    • †Productella belanskii
    • †Productella boydii
    • †Productella callawayensis
    • †Productella dumosa
    • †Productella navicella
    • †Productella nevicella
    • †Productella perplana
    • †Productella rectispina
    • †Productella speciosa
    • †Productella spinulocosta
  • †Proendoceras
  • Restoration of the Silurian trilobite Proetus
    †Proetus
    • †Proetus clarus
    • †Proetus corycocus
    • †Proetus corycoeus
    • †Proetus haldemani
    • †Proetus stokesi
  • †Prolixocrinus
    • †Prolixocrinus nodocaudis
  • †Promourlonia
    • †Promourlonia durhamensis
  • †Proplina
    • †Proplina cornutaformis
  • †Propora
  • †Prosaukia
    • †Prosaukia spinula
  • †Proscorpius – type locality for genus
    • †Proscorpius osborni – type locality for species
  • †Prosopeionum
    • †Prosopeionum plexum – type locality for species
  • †Prosseria
    • †Prosseria grandis
  • †Protaster
    • †Protaster stellifer
  • †Protaxocrinus
    • †Protaxocrinus annellus
  • †Proteoceras
    • †Proteoceras moniliforme
    • †Proteoceras perkinsi
  • †Proteokalon
    • †Proteokalon petryi
  • †Proterocameroceras
    • †Proterocameroceras brainerdi
  • †Prothyris
    • †Prothyris lanceolata
  • †Protocalyptraea – type locality for genus
    • †Protocalyptraea marshalli – type locality for species
    • †Protocalyptraea styliophila – type locality for species
  • †Protochthonius – type locality for genus
    • †Protochthonius gilboa – type locality for species
  • †Protocrisina
  • †Protocycloceras
    • †Protocycloceras catulus
    • †Protocycloceras furtivum
    • †Protocycloceras lamarcki
    • †Protocycloceras xerxes
  • †Protodouvillina
    • †Protodouvillina inequistrata
    • †Protodouvillina inequistriata
  • †Protokionoceras
  • †Protolepidodendron
    • †Protolepidodendron gilboense
    • †Protolepidodendron scharianum
  • †Protoleptostrophia
    • †Protoleptostrophia concava
    • †Protoleptostrophia lirella
    • †Protoleptostrophia perplana
  • †Protomegastrophia
  • †Protopanderodus
  • †Protoscolex
  • †Protozyga
  • †Proturritella
    • †Proturritella historicum
  • †Protypus
  • †Pseudaviculopecten
    • †Pseudaviculopecten fasciculatus
    • †Pseudaviculopecten princeps
  • †Pseudoatrypa
    • †Pseudoatrypa devoniana
    • †Pseudoatrypa entilformis
  • †Pseudoatrypta
    • †Pseudoatrypta devoniana – or unidentified comparable form
  • †Pseudoblothrophyllum
    • †Pseudoblothrophyllum arrectum
    • †Pseudoblothrophyllum helderbergicum
    • †Pseudoblothrophyllum helderbergium
    • †Pseudoblothrophyllum munnsvillium
  • †Pseudohornea
    • †Pseudohornea diffusa
  • †Pseudohornera
    • †Pseudohornera diffusa
  • †Pseudohydnoceras
    • †Pseudohydnoceras erraticum
  • †Pseudolingula
    • †Pseudolingula rectilateralis
  • Illustration of a fossil of the Silurian arthropod Pseudoniscus
    †Pseudoniscus
  • †Pseudooneotodus
    • †Pseudooneotodus bicornis
  • †Pseudoplagiothyra
    • †Pseudoplagiothyra praecursor
  • †Pseudosphaerexochus
    • †Pseudosphaerexochus approximus
    • †Pseudosphaerexochus satyrus
    • †Pseudosphaerexochus vulcanus
  • †Pseudosporochnus
  • †Pseudostictoporella
  • †Pseudostylodictyon
    • †Pseudostylodictyon lamottense
  • Fossil of the primitive Devonian vascular plant Psilophyton
    †Psilophyton
    • †Psilophyton grandis
  • †Pteracontiodus
    • †Pteracontiodus bransoni
  • †Pterina
    • †Pterina demissa
  • †Pterinea
    • †Pterinea emacerata
    • †Pterinea insueta
    • †Pterinea jordani – or unidentified comparable form
    • †Pterinea waylandsmithi – type locality for species
  • †Pterinopectan
    • †Pterinopectan undosus
    • †Pterinopectan vertumnus
  • †Pterinopecten
    • †Pterinopecten erectus
    • †Pterinopecten hermes
    • †Pterinopecten suborbicularis
    • †Pterinopecten vertumnus
  • †Pteriochaenia
    • †Pteriochaenia fragilis
  • †Pterochaenia
    • †Pterochaenia fragilis
  • †Pterospathodus
  • †Pterotheca
    • †Pterotheca expansa
  • Restoration of the Silurian-Middle Devonian eurypterid ("sea scorpion") Pterygotus
    †Pterygotus
    • †Pterygotus cobbi
    • †Pterygotus juvensis
    • †Pterygotus monroensis
  • †Ptilodictya
    • †Ptilodictya plumea
  • †Ptilograptus
  • †Ptilonaster
    • †Ptilonaster princeps
  • †Ptiloporella
  • †Ptomatis
    • †Ptomatis patulus – type locality for species
    • †Ptomatis rudis
  • †Ptychagnostus
    • †Ptychagnostus elegans
    • †Ptychagnostus punctuosus
  • †Ptychaspis
    • †Ptychaspis speciosus
  • †Ptychocrinus
    • †Ptychocrinus medinensis
  • †Ptychodesma
    • †Ptychodesma knappianum
  • †Ptychomphalina
    • †Ptychomphalina lucina
  • Fossils of the Cambrian trilobite Ptychoparia
    †Ptychoparia
    • †Ptychoparia matheri – type locality for species
    • †Ptychoparia minuta
  • †Ptychopteria
    • †Ptychopteria chemungensis
    • †Ptychopteria elongata
    • †Ptychopteria flabella
    • †Ptychopteria flabellum
    • †Ptychopteria mesacostalis
    • †Ptychopteria proto
    • †Ptychopteria subdecussata
  • †Ptychosphaera
    • †Ptychosphaera thalia
  • †Pugnoides
    • †Pugnoides pugnus
  • †Punctomosea
    • †Punctomosea cristata
  • †Punctoprimitia
    • †Punctoprimitia subaequalis
  • †Pustulatia
    • †Pustulatia pustulosa
  • †Pyrenmoeus
    • †Pyrenmoeus cuneatus
  • †Pyrenomoeus
    • †Pyrenomoeus cuneatus
  • †Pyrgopostibulla – type locality for genus
    • †Pyrgopostibulla belli – type locality for species
  • †Pyrocystites
  • †Pyronema

Q
  • †Quasillites
    • †Quasillites angulatus
    • †Quasillites subobliquus

R
  • †Radnoria
  • †Rafinesquina
    • †Rafinesquina alternata
    • †Rafinesquina deltoidea
    • †Rafinesquina mucronata
    • †Rafinesquina nasuta
    • †Rafinesquina obscura
    • †Rafinesquina praecursor
    • †Rafinesquina prestonensis
  • †Raphistoma
    • †Raphistoma stamineum
    • †Raphistoma striatum
  • †Raphistomina
    • †Raphistomina undulata
  • Fossil of the Early Ordovician-Permian benthic alga Receptaculites
    †Receptaculites
    • †Receptaculites monticulatus – or unidentified related form
  • †Redstonia
    • †Redstonia knaeckei – type locality for species
  • †Reimannia
    • †Reimannia aldenense
    • †Reimannia aldenese
  • †Rellimia
    • †Rellimia thomsonii
  • †Remopleuridella – tentative report
    • †Remopleuridella obtusa
  • †Remopleurides
    • †Remopleurides canadensis
  • †Remopleuridiella – tentative report
    • †Remopleuridiella obtusa – type locality for species
  • †Rensselaeria
    • †Rensselaeria elongata – or unidentified comparable form
  • †Rensselaerina – tentative report
  • †Reptaria
    • †Reptaria stolonifera
  • †Resserella
    • †Resserella elegantula
  • †Reteocrinus
    • †Reteocrinus stellaris
  • †Reteograptus
  • †Reteporina
  • †Retichonetes
    • †Retichonetes obscurus – or unidentified related form
    • †Retichonetes setigerus
  • †Reticularia
    • †Reticularia bicastata
    • †Reticularia bicostata
    • †Reticularia biocostata
  • †Reticularograptus
    • †Reticularograptus retiforme
  • †Reticulograptus
    • †Reticulograptus retiforme
  • †Retiolites
    • †Retiolites geinitzianus
    • †Retiolites venosus
  • †Retispira
    • †Retispira leda
    • †Retispira otsego – type locality for species
    • †Retispira repertus – type locality for species
  • †Retusotriletes
    • †Retusotriletes goensis
    • †Retusotriletes rotundus
  • †Rhabdosporites
    • †Rhabdosporites langi
    • †Rhabdosporites langii
  • †Rhabdostropha
  • †Rhacophyton
    • †Rhacophyton ceratangium
  • †Rhinidictya
    • †Rhinidictya bryozoan
    • †Rhinidictya fenestrata
  • Fossil of the Silurian eurypterid ("sea scorpion") Rhinocarcinosoma
    †Rhinocarcinosoma
    • †Rhinocarcinosoma cicerops
  • †Rhinopora
    • †Rhinopora tuberculosa
    • †Rhinopora verrucosa
    • †Rhinopora verrucus
  • †Rhipidomella
    • †Rhipidomella circulus
    • †Rhipidomella cyclas
    • †Rhipidomella hybrida
    • †Rhipidomella hybridia
    • †Rhipidomella leucosia
    • †Rhipidomella penelope
    • †Rhipidomella trigona
    • †Rhipidomella vanuxemi
  • †Rhipidomelloides
    • †Rhipidomelloides oblata
  • †Rhipidothyris
    • †Rhipidothyris lepida
    • †Rhipidothyris mulitplicata
    • †Rhipidothyris plicata
  • †Rhodesognathus
    • †Rhodesognathus elegans
  • †Rhombopora
    • †Rhombopora rhombifera
  • †Rhombotrypa
    • †Rhombotrypa spinulifera
  • †Rhymokalon
    • †Rhymokalon trichium
  • Fossilized shell of the Silurian-Eocene articulate brachiopod Rhynchonella
    †Rhynchonella
    • †Rhynchonella bidens
    • †Rhynchonella bidentata
    • †Rhynchonella emacerata
    • †Rhynchonella formosa
  • †Rhynchospirina
  • †Rhynchotrema
    • †Rhynchotrema increbescens
  • †Rhynchotreta
    • †Rhynchotreta americana
    • †Rhynchotreta robusta
  • †Rhynidictya
    • †Rhynidictya fenestrata
  • †Rhyssochonetes
    • †Rhyssochonetes aurora
    • †Rhyssochonetes filicostatus
  • †Rhytimia
    • †Rhytimia buffaloensis – or unidentified comparable form
  • †Rhytimya
  • †Ribeiria
    • †Ribeiria taylori – type locality for species
  • †Richina
    • †Richina selenicristata – type locality for species
  • †Rimouskia
  • †Ripidiorhynchus – tentative report
  • †Robergiella
    • †Robergiella brevilingua – or unidentified comparable form
  • †Roemerella
    • †Roemerella grandis
  • †Romingeria
  • †Rominigeria
  • †Romnigeria
  • †Ropalonaria
  • †Rossodus
    • †Rossodus manitouensis
  • Rostricellula
    • †Rostricellula major
    • †Rostricellula plena
    • †Rostricellula pristina
  • †Roundyella – tentative report
    • †Roundyella concentrica – type locality for species
  • †Rudolfoceras
    • †Rudolfoceras cornuoryx
  • †Ruedemannia
    • †Ruedemannia lirata
    • †Ruedemannia trilix
  • †Ruedemannipterus
    • †Ruedemannipterus stylonuroides
  • Fossil of the arthropod burrow ichnogenus Rusophycus
    †Rusophycus
    • †Rusophycus biloba
    • †Rusophycus pudicum
    • †Rusophycus subangulatum

S
  • †Saccarchites
  • †Saccocrinus
  • †Salopina
    • †Salopina type locality for species A – informal
  • †Sandbergeroceras
    • †Sandbergeroceras enfieldense – type locality for species
    • †Sandbergeroceras syngonum
  • †Sanguinolites
    • †Sanguinolites contractus
    • †Sanguinolites cuneatus
    • †Sanguinolites solenoides
    • †Sanguinolites tiogensis
    • †Sanguinolites truncatus
  • †Sapphicorhynchus
    • †Sapphicorhynchus sappho
  • †Saratogia
  • †Sawdonia
    • †Sawdonia ornata
  • †Scalites
    • †Scalites angulatus
  • †Scalpellodus
    • †Scalpellodus longipinnatus
  • †Scapanocrinus
    • †Scapanocrinus muricatus
  • †Scaptina
    • †Scaptina incuda – type locality for species
  • †Scendium
    • †Scendium pyramidale
  • Fossils of the Cambrian mollusc Scenella
    †Scenella
  • †Scenophyllum
    • †Scenophyllum conigerum
  • †Schindewolfoceras
    • †Schindewolfoceras chemungense
    • †Schindewolfoceras equicostatum – or unidentified related form
  • †Schizambon
    • †Schizambon duplicimuratum
  • †Schizo (genus)
  • †Schizocrania
    • †Schizocrania filosa
  • †Schizocrinus
    • †Schizocrinus nodosus
  • †Schizodus
    • †Schizodus chemungensis
  • †Schizonema
  • †Schizopea
    • †Schizopea typica – type locality for species
  • †Schizophoria
    • †Schizophoria impressa
    • †Schizophoria mulistriata
    • †Schizophoria multistriata
    • †Schizophoria striatula
    • †Schizophoria tioga
    • †Schizophoria tulliensis
    • †Schizophoria with
  • †Schizopodium
    • †Schizopodium mummii
  • †Schizotreta
    • †Schizotreta tenuilamellata
  • †Schmidtella
    • †Schmidtella crassimarginata
  • †Schuchertella
    • †Schuchertella arctostriata
    • †Schuchertella arctostriatus
    • †Schuchertella elegans
    • †Schuchertella interstriata
    • †Schuchertella marylandica – or unidentified comparable form
    • †Schuchertella pandora
    • †Schuchertella parva
    • †Schuchertella subplana
    • †Schuchertella sulcifer
    • †Schuchertella tenuis
    • †Schuchertella woolworthanus
  • †Schuchetella
    • †Schuchetella arctostriatus
  • †Scolopodus
    • †Scolopodus insculptus
  • †Scutellum
    • †Scutellum niagarensis
  • †Scyphocrinites
  • †Seelyoceras
    • †Seelyoceras raei
  • †Semiacontiodus
    • †Semiacontiodus iowensis
    • †Semiacontiodus nogamii
  • †Semicoscinium
    • †Semicoscinium tenuiceps
  • Serpula
  • †Serpulites
  • †Serpulospira
    • †Serpulospira eboracensis – type locality for species
    • †Serpulospira laxus
  • †Serrodiscus
  • †Serrulacaulis
    • †Serrulacaulis furcatus
  • †Serulacaulis
    • †Serulacaulis furcatus
  • †Shumardia
  • Fossilized stump of the Carboniferous-Permian club moss relative Sigillaria
    †Sigillaria
    • †Sigillaria gilboensis
  • †Silurovelella – type locality for genus
    • †Silurovelella casteri – type locality for species
  • †Sinochonetes
    • †Sinochonetes lepidus
  • †Sinuites
    • †Sinuites cancellatus – type locality for species
  • †Sinuitina
    • †Sinuitina acutilira
    • †Sinuitina brevilineatus
  • †Sinuopea
    • †Sinuopea emminencis – type locality for species
    • †Sinuopea parva – type locality for species
  • †Siphonophrentis
  • †Siphonophretis
    • †Siphonophretis variabilis
  • †Skenidioides
    • †Skenidioides pyramidale
    • †Skenidioides pyramidalis
  • †Skenidium
    • †Skenidium insignis – or unidentified comparable form
    • †Skenidium pyramidale
    • †Skenidium pyramidalis
  • Life restoration of the Silurian eurypterid ("sea scorpion") Slimonia
    †Slimonia
  • †Solenopleura
  • †Solenopora
  • †Sowerbyella
    • †Sowerbyella curdvillensis
    • †Sowerbyella kayi
    • †Sowerbyella senaria
    • †Sowerbyella sericea
    • †Sowerbyella transversalis
  • †Spathella
    • †Spathella typica
  • †Spatiopora
    • †Spatiopora maculata
  • †Spatipora
    • †Spatipora maculata
  • Fossil of the Middle Ordovician-Silurian trilobite Sphaerexochus
    †Sphaerexochus
    • †Sphaerexochus parvus
    • †Sphaerexochus valcourensis
  • †Sphaerocoryphe
    • †Sphaerocoryphe goodnovi
    • †Sphaerocoryphe robusta
  • †Sphaeromanticoceras
    • †Sphaeromanticoceras oxy
    • †Sphaeromanticoceras rhynchostomum
    • †Sphaeromanticoceras rickardi
  • †Sphaerospongia
    • †Sphaerospongia tessellata – or unidentified related form
  • †Sphenophragmus
    • †Sphenophragmus nanus
  • †Sphenosphaera
    • †Sphenosphaera fiscellostriata
  • †Sphenotreta
    • †Sphenotreta acutirostris
  • †Spinatrypa
    • †Spinatrypa hystrix
    • †Spinatrypa spinosa
  • †Spinocespitosus
    • †Spinocespitosus parallelus
  • †Spinocyrtia
    • †Spinocyrtia granulosa
    • †Spinocyrtia macbridei
    • †Spinocyrtia marcyi
  • †Spinocyrtina
    • †Spinocyrtina granulosa
  • †Spinoplasia
    • †Spinoplasia gaspensis – or unidentified comparable form
  • †Spinozonotriletes – tentative report
    • †Spinozonotriletes naumovii – or unidentified comparable form
  • †Spinulicosta
    • †Spinulicosta spinulicosta
  • †Spinulocosta
    • †Spinulocosta spinulocosta
  • †Spinyplatyceras
    • †Spinyplatyceras dumosum
    • †Spinyplatyceras fornicatum
  • Fossilized shell of the Late Ordovician-Late Triassic brachiopod Spirifer
    †Spirifer
    • †Spirifer anchiasper
    • †Spirifer anchiaspirifer
    • †Spirifer aroostookensis
    • †Spirifer crispatus
    • †Spirifer crispus
    • †Spirifer duodenarius
    • †Spirifer eudora
    • †Spirifer macra
    • †Spirifer macrothyris
    • †Spirifer macrus
    • †Spirifer marcyi
    • †Spirifer mesicostalis
    • †Spirifer mesistrialis
    • †Spirifer niagarensis
    • †Spirifer posterus
    • †Spirifer raricosta
    • †Spirifer repertus
    • †Spirifer sculptilis
    • †Spirifer subcuspidatus
    • †Spirifer sulcata
    • †Spirifer sulcatus
    • †Spirifer varicosa
    • †Spirifer varicosta
    • †Spirifer williamsi
  • †Spirobis
  • †Spirobus
  • †Spirodentalium – tentative report
  • †Spirophyton
  • Fossil of the burrow ichnogenus Spirorhaphe
    †Spiroraphe
    • †Spiroraphe galtensis
  • Spirorbis
    • †Spirorbis laxa
  • †Spyroceras
    • †Spyroceras crotalum
    • †Spyroceras geneva
    • †Spyroceras nuntium
  • †Staurograptus
  • †Stegerhynchus
    • †Stegerhynchus acinus
    • †Stegerhynchus neglectum
    • †Stegerhynchus neglectus
  • †Stenokoleos
    • †Stenokoleos bifidus
    • †Stenokoleos holmesii
  • †Stenoloron
    • †Stenoloron areyi – type locality for species
  • †Stenopareia
    • †Stenopareia globosus
  • †Stenopora
    • †Stenopora fibrosa
    • †Stenopora patula
  • †Stenoscisma
  • †Stephanocrinus
    • †Stephanocrinus angulatus
    • †Stephanocrinus gemmiformis
  • †Stereolasma
    • †Stereolasma rectum
  • †Stereospyroceras
    • †Stereospyroceras clintoni
  • †Steriolasma
    • †Steriolasma rectum
  • †Steroolasma
    • †Steroolasma rectum
  • †Stewartophyllum
    • †Stewartophyllum intermittens
  • †Stictopora
    • †Stictopora blackensis
    • †Stictopora fenestrata
    • †Stictopora labyrintha
    • †Stictopora labyrinthica
  • †Stictoporella
  • †Stictotrypa
    • †Stictotrypa punctipora
  • †Stigmatella
  • †Stipatocrinus
  • Stomatopora
  • †Straelenia
  • †Straparolis
  • †Straparollina
    • †Straparollina hudsoni
  • †Straparollus
    • †Straparollus clymenioides
    • †Straparollus planodiscus
  • †Strataster
    • †Strataster maciverorum – type locality for species
  • †Streblocrinus – type locality for genus
    • †Streblocrinus brachiatus – type locality for species
  • †Strepsodiscus
    • †Strepsodiscus hoyti
  • †Streptelasma
    • †Streptelasma corniculum
  • †Strepulites
    • †Strepulites divectus – type locality for species
  • †Striacoceras
    • †Striacoceras typum
  • †Striatochonetes
    • †Striatochonetes flexuosus
    • †Striatochonetes flexuousus
    • †Striatochonetes setigera
    • †Striatochonetes setigerus
  • †Striatopora
    • †Striatopora flexuosa
  • †Striatostyliolina
  • †Stricklandia
  • †Strigigenalis
    • †Strigigenalis cassinensis
  • †Striispirifer
    • †Striispirifer niagarensis
  • †Strobeus
    • †Strobeus onondagaensis
  • †Stromatocerium
    • †Stromatocerium rugosum
  • †Stromatopora
    • †Stromatopora constellata
  • †Strophalosia
    • †Strophalosia truncata
  • †Stropheodonta
    • †Stropheodonta demissa
  • †Strophochonetes
    • †Strophochonetes cornutus
  • †Strophodonta
    • †Strophodonta demissa
  • Fossilized shell of the Ordovician-Silurian brachiopod Strophomena
    †Strophomena
    • †Strophomena acutiradiata
    • †Strophomena conradi
    • †Strophomena convexa
    • †Strophomena corrugata
    • †Strophomena crassa
    • †Strophomena deflecta
    • †Strophomena inaequistriata
    • †Strophomena incurvata
    • †Strophomena inequiradiata
    • †Strophomena iowensis
    • †Strophomena orthididea
    • †Strophomena pentagonia
    • †Strophomena profunda
    • †Strophomena subplana
  • †Strophoneila
    • †Strophoneila punctulifera
  • †Strophonella
    • †Strophonella ampla
    • †Strophonella headleyana – or unidentified comparable form
    • †Strophonella leavenworthana
    • †Strophonella patenta
    • †Strophonella punctulifera
    • †Strophonella striata
  • †Strophostylus
    • †Strophostylus cancellata
    • †Strophostylus fitchi – type locality for species
    • †Strophostylus rotundata – type locality for species
  • Stylaraea
    • †Stylaraea parva
  • †Stylioina
    • †Stylioina fissurella
  • †Styliolina
    • †Styliolina fissurella
  • †Styliolinid
  • †Stylonema
    • †Stylonema robusta – type locality for species
  • Life restoration of the Devonian eurypterid ("sea scorpion") Stylonurus
    †Stylonurus
  • †Subligaculum
    • †Subligaculum aculeatus – type locality for species
    • †Subligaculum laciniosum
  • †Subretepora
  • †Subulites
    • †Subulites elongatus
    • †Subulites prolongata
  • †Suecoceras
    • †Suecoceras marcoui
  • †Sulcella
    • †Sulcella emicatusa – type locality for species
  • †Sulcoretepora
    • †Sulcoretepora inscissurata
  • †Sulcoretopera
  • †Sulcoretopora
    • †Sulcoretopora incisurata – or unidentified comparable form
  • †Svalbardia
    • †Svalbardia banksii
  • †Syaptocrinus
    • †Syaptocrinus nintius
  • †Symphysurina
    • †Symphysurina convexa
    • †Symphysurina myopia – type locality for species
  • †Synaptocrinus
    • †Synaptocrinus nuntius
  • †Synaptophyllum
    • †Synaptophyllum simcoense
  • †Synbathocrinus
    • †Synbathocrinus canandaigua
  • †Synphoria – report made of unidentified related form or using admittedly obsolete nomenclature
  • †Synphoroides
    • †Synphoroides pleuroptyx
  • †Syringaxon
    • †Syringaxon rudis
  • Fossil of the Devonian tabulate coral Syringopora
    †Syringopora

T
  • †Tabulophyllum
    • †Tabulophyllum orientale
  • Fossils of the Devonian plant stem morphogenus Taeniocrada
    Fossils of the Devonian plant stem morphogenus Taeniocrada
    †Taeniocrada
    • †Taeniocrada stilesvillensis
  • †Taeniopora
    • †Taeniopora exigua
  • †Taineopora
  • †Taonurus
    • †Taonurus caudagalli
  • †Tarphyceras
    • †Tarphyceras clarkei
    • †Tarphyceras farnsworthi
    • †Tarphyceras multicameratum
  • †Technophorus
    • †Technophorus cancellatus – type locality for species
  • †Tellinopsis
    • †Tellinopsis subemarginata
    • †Tellinopsis subemargula
  • Fossilized shell of the Early Ordovician-Late Devonian probable mollusc Tentaculites
    †Tentaculites
    • †Tentaculites bellulus
    • †Tentaculites elongatus
    • †Tentaculites gracilis
    • †Tentaculites gyracanthus
    • †Tentaculites minutus
    • †Tentaculites scalariformis
    • †Tentaculites scaleriformis
    • †Tentaculites simmondsi
    • †Tentaculites spiculus
  • †Tetradium
    • †Tetradium cellulosum
  • †Tetranodoceras
    • †Tetranodoceras transversum
  • †Tetranota
    • †Tetranota bidorsata
  • †Tetrasacculus
    • †Tetrasacculus magnivelatus – or unidentified comparable form
    • †Tetrasacculus paeneteichus – type locality for species
  • Diagram of the branches of the Middle-Late Devonian vascular plant Tetraxylopteris
    †Tetraxylopteris
    • †Tetraxylopteris BR4
    • †Tetraxylopteris schmidtii
  • †Thaerocrinus
    • †Thaerocrinus crenatus
  • †Thalamocrinus
  • †Thaleops
    • †Thaleops longispina – type locality for species
    • †Thaleops ovata
    • †Thaleops punctata
    • †Thaleops raymondi
  • †Thamnopora
  • †Thamnoptychia
    • †Thamnoptychia limbata
    • †Thamnoptychia ornata
    • †Thamnoptychia romingeri
  • †Thiemella
    • †Thiemella danbyi
    • †Thiemella danybi
    • †Thiemella leonensis
  • †Thlipsurella – tentative report
  • †Thylacocrinus
    • †Thylacocrinus clarkei
  • †Tormosocrinus
    • †Tormosocrinus furberi
  • †Tornoceras
    • †Tornoceras arcuatum
    • †Tornoceras typum – or unidentified comparable form
    • †Tornoceras uniangulare
  • †Tremanotus
    • †Tremanotus angustata
    • †Tremanotus profundus – type locality for species
  • †Trematis
    • †Trematis terminalis
  • †Trematopora
    • †Trematopora tuberculata
    • †Trematopora tuberculosa
  • †Trematospira
    • †Trematospira camura
    • †Trematospira gibbosa
    • †Trematospira perforata – or unidentified comparable form
  • Fossil preserving limbs and antennae as pyrite (fool's gold) of the underside of the Late Ordovician trilobite Triarthrus
    †Triarthrus
  • †Tricornina
  • †Triendoceras
    • †Triendoceras orthoseptatum
  • †Trigonodictya
    • †Trigonodictya acuta
  • †Trigonograptus
  • †Trigrammaria
  • †Triloboxylon
    • †Triloboxylon arnoldii
    • †Triloboxylon ashlandicum
  • †Trimerus
    • †Trimerus delphinocephalus
  • †Triplesia
  • †Tripteroceras
    • †Tripteroceras cariniferum – type locality for species
  • †Tritonophon
    • †Tritonophon trilobatus
  • Fossilized shell of the Middle-Late Devonian nautiloid cephalopod Trochoceras
    †Trochoceras
  • †Trocholites
    • †Trocholites ammonius
    • †Trocholites gracilis
    • †Trocholites ruedemanni
  • †Trochonema
    • †Trochonema dispar
    • †Trochonema rectangularis
  • †Trochonemella
    • †Trochonemella knoxvillensis
  • †Tropidocoryphe
    • †Tropidocoryphe richterorum – type locality for species
  • †Tropidodiscus
    • †Tropidodiscus curvilineatus
  • †Tropidoleptus
    • †Tropidoleptus carinatus
  • †Tropodus
    • †Tropodus comptus
  • †Truncalosia
    • †Truncalosia truncata
  • †Truyolsoceras
    • †Truyolsoceras bicostatum – type locality for species
  • Illustration of a fossilized shell in multiple views of the Silurian monoplacophoran mollusc Tryblidium reticulatum. Head region is to the left.
    †Tryblidium
  • †Tryplasma
    • †Tryplasma fascicularium – type locality for species
  • †Tubulibairdia
    • †Tubulibairdia windomensis
  • †Tullypothyridina
    • †Tullypothyridina venestula
  • †Tylothyris
    • †Tylothyris clarksvillensis
    • †Tylothyris mesa
    • †Tylothyris mesacostalis
    • †Tylothyris mesicostalis
    • †Tylothyris novamexicana
    • †Tylothyris pauliformis
  • †Tyserella
    • †Tyserella pauliformis
  • †Tytthocrinus
    • †Tytthocrinus arcarius – type locality for species

U
  • †Ulrichia
    • †Ulrichia acricula
    • †Ulrichia fragilis
    • †Ulrichia illinearis
    • †Ulrichia spinifera
    • †Ulrichia ventura – type locality for species
  • †Ulrichodina
    • †Ulrichodina abnormalis
  • †Ulrichostylus
  • †Uncinulus
    • †Uncinulus abruptus
    • †Uncinulus mutabilis
    • †Uncinulus nucleolatus
    • †Uncinulus pyramidatus
  • †Unitrypa
  • †Uromystrum
    • †Uromystrum brevispinum
    • †Uromystrum minor

V
  • †Vaginoceras
    • †Vaginoceras oppletum
  • †Valcourea
    • †Valcourea strophomenoides
  • †Valcouroceras
    • †Valcouroceras bovinum
    • †Valcouroceras cyclops
    • †Valcouroceras elongatum – type locality for species
    • †Valcouroceras obesum
    • †Valcouroceras tenuiseptum
  • †Vaningenoceras
    • †Vaningenoceras indomitum
    • †Vaningenoceras styliforme
  • †Vanuxemia
    • †Vanuxemia limbata
  • †Variabiloconus
  • †Vassaroceras
    • †Vassaroceras henrietta – type locality for species
  • †Velibeyrichia
  • †Vermiforafacta
    • †Vermiforafacta rollinsi
  • †Vermiforichnus
    • †Vermiforichnus clarkei
  • †Vernonaspis
  • †Vertumnia
    • †Vertumnia reversa
  • †Vetupraeca
    • †Vetupraeca duplicata
    • †Vetupraeca vetusta – type locality for species
  • †Viriatellina
  • †Vogdesia
    • †Vogdesia bearsi
    • †Vogdesia obtusus

W
  • Fossilized head of the Silurian eurypterid ("sea scorpion") Waeringopterus
    †Waeringopterus
    • †Waeringopterus cumberlandicus
    • †Waeringopterus vernonensis
  • †Walcottoceras
  • †Walliserodus
    • †Walliserodus sancticlairi
  • †Warrenella
    • †Warrenella laevis
    • †Warrenella magna
  • †Wellsites
    • †Wellsites tynani
    • †Wellsites williamsi – type locality for species
  • †Whidbornella
    • †Whidbornella hirsuta
    • †Whidbornella lachrymosa
  • †Whiteavsia
    • †Whiteavsia expansa
    • †Whiteavsia undata
  • †Whitfieldella
    • †Whitfieldella cylindrica
    • †Whitfieldella intermedia
    • †Whitfieldella naviformis
    • †Whitfieldella naviormis
    • †Whitfieldella nitida
    • †Whitfieldella oblata
  • †Whitfieldia – tentative report
  • †Whitfieldoceras
    • †Whitfieldoceras lenticontractum – type locality for species
  • †Wurmiella

X
  • †Xenocladia
    • †Xenocladia medullosina
  • †Xystostrophia
    • †Xystostrophia woolworthana

Y
  • Life restoration of the probable Cambrian mollusc Yochelcionella
    †Yochelcionella
    • †Yochelcionella greenlandica
  • †Yochelsonella – type locality for genus
    • †Yochelsonella compressa – type locality for species
  • †Yorba

Z
  • †Zaphrenthis
    • †Zaphrenthis bilateralis
    • †Zaphrenthis turbinata
  • †Zittelloceras
    • †Zittelloceras praecedens – type locality for species
  • Fossil of the feeding trace ichnogenus Zoophycos
    †Zoophycos
  • †Zostocrinus
    • †Zostocrinus ornatus
  • †Zygobolba
    • †Zygobolba crta
    • †Zygobolba curta
    • †Zygobolba decora
    • †Zygobolba elongata – tentative report
    • †Zygobolba excavata
    • †Zygobolba inflata
    • †Zygobolba intermedia
    • †Zygobolba oblonga
    • †Zygobolba prolixa
    • †Zygobolba rectangula
    • †Zygobolba robusta
  • †Zygobolbina
    • †Zygobolbina conradi
  • †Zygosella
    • †Zygosella vallata – or unidentified comparable form
  • †Zygospira
    • †Zygospira modesta

References
  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved 7 August 2017.
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