Eryopidae

Eryopidae; Temporal range: ; Pennsylvanian- Early Permian,
	Cast of a skeleton of Eryops megacephalus, National Museum of Natural History
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	†Temnospondyli
Superfamily:	†Eryopoidea
Family:	†Eryopidae; Cope, 1882
Genera
	Actinodon; ?Cheliderpeton; Chelydosaurus; Clamorosaurus; Eryops; Onchiodon; Osteophorus; Syndyodosuchus

Eryopidae were a group of medium to large amphibious temnospondyli, known from North America and Europe. They are defined as all eryopoids with interpterygoid vacuities (spaces in the interpterygoid bone) that are rounded at the front; and large external nares (Laurin and Steyer 2000). Not all of the genera previously included in the Eryopidae (Carroll 1988) are retained under the cladistic revisions.

Gallery

Eryops megacephalus, of the late Carboniferous to early Permian of North America
Onchiodon, of the late Carboniferous to early Permian of Europe and North America
Actinodon frossardi, of the early Permian of France
Clamorosaurus nocturnis, of the early Permian of Russia

References

Carroll, R. L. (1988), Vertebrate Paleontology and Evolution, W.H. Freeman & Co.
Laurin. M and Steyer, J-S, (2000), Phylogeny and Apomorphies of Temnospondyls - Tree of Life project

External links

Eryopoidea - Mikko's Phylogeny Archive

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