Eutemnospondyli

Eutemnospondyli (meaning "true Temnospondyli") is a clade of temnospondyl amphibians that includes most temnospondyls except edopoids. Eutemnospondyli was named by German paleontologist Rainer R. Schoch in 2013. He defined it as a stem-based taxon including all temnospondyls more closely related to Stereospondyli than to Edopoidea. In his phylogenetic analysis, Eutemnospondyli included dendrerpetontids and a clade he referred to as Rhachitomi. Rhachitomi is defined to include four major and well-supported clades of temnospondyls: Dvinosauria, Eryopidae, Stereospondyli and a clade formed by Zatracheidae and Dissorophoidea. Below is a cladogram from Schoch's analysis:[1]

Temnospondyli
 

Edopoidea

 
Eutemnospondyli
 

"Dendrerpetontidae"

 
Rhachitomi
 
 

Dvinosauria

 
 
 

Zatracheidae

 
 

Dissorophoidea

 
 
 
Eryopiformes
 

Eryopidae

 
Stereospondylomorpha
 

Sclerocephalus

 
 
 

Glanochthon

 
 
 

Archegosaurus

 
 
 

Australerpeton

 
Stereospondyli
 

Rhinesuchidae

 
 
 

Lydekkerina

 
 
 

Capitosauria

 
 

Trematosauria

 
 
 
 
 
 
 
 
 
 
 
 

Eutemnospondyli
Temporal range: Early Carboniferous - Early Cretaceous, 330–120 Ma
Possible descendant taxon Lissamphibia survives to present.
Skeleton of Cacops
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Order: †Temnospondyli
Clade: †Eutemnospondyli
Schoch, 2013
Genera

See text

References

  1. Schoch, R. R. (2013). "The evolution of major temnospondyl clades: An inclusive phylogenetic analysis". Journal of Systematic Palaeontology. 11: 673–705. doi:10.1080/14772019.2012.699006.


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