Arctognathus

Arctognathus is an extinct genus of gorgonopsids that throve during the Late Permian in the Karoo basin of what is now South Africa.[1]

Arctognathus
Temporal range: Permian
Life restoration of A. curvimola
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Clade: Therapsida
Family: †Gorgonopsidae
Genus: †Arctognathus
Broom, 1911
Species
  • †A. curvimola (Owen, 1876 [originally Lycosaurus curvimola]) (type)
Synonyms
  • Arctognathoides Boonstra, 1934
  • Lycaenodontoides Haughton, 1924

Discovery

1886 illustration of a A. curvimola skull

A carnivore, like all gorgonopsid, Arctognathus was given its name ("Bear jaw") in reference to its short and rounded snout. There is only one recognized species, A. curvimola.[2]

Description

It was a small gorgonopsid with a total length estimated at 1.1 m and an 18 cm skull.[3]

Classification

Restoration of A. curvimola in environment
Head of A. curvimola

Below is a cladogram from the phylogenetic analysis of Gebauer (2007):[4]

Gorgonopsia 
 

Aloposaurus

 
 
 

Cyonosaurus

 
 
 

Aelurosaurus

 
Gorgonopsidae
 

Scylacognathus

 
 
 

Eoarctops

 
 

Gorgonops

 
 
 

Njalila

 
 
 

Lycaenops

 
 
 

Arctognathus

 
 
 

Inostrancevia

 
Rubidgeinae
 

Aelurognathus

 
 
 

Rubidgea

 
 
 

Sycosaurus

 
 

Clelandina

 
 
 
 
 
 
 
 
 
 
 
 
 

See also

References

  1. Sidor 2003, p. 606
  2. Christian F. Kammerer (2014) Cranial osteology of Arctognathus curvimola, a short-snouted gorgonopsian from the Late Permian of South Africa. Papers in Palaeontology (advance online publication) DOI: 10.1002/spp2.1002 http://onlinelibrary.wiley.com/doi/10.1002/spp2.1002/abstract
  3. "Arctognathus - Palaeocritti - a guide to prehistoric animals".
  4. Gebauer, E.V.I. (2007). Phylogeny and evolution of the Gorgonopsia with a special reference to the skull and skeleton of GPIT/RE/7113 ('Aelurognathus?' parringtoni) (PDF) (Ph.D. thesis). Tübingen: Eberhard-Karls Universität Tübingen. pp. 1–316.

Bibliography


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