Amniota - Pelycosauria - Eothyrididae

Full reference: A. S. Romer. 1937. New genera and species of pelycosaurian reptiles. Proceedings of the New England Zoölogical Club 16:89-95

Parent taxon: Eothyrididae according to W. Langston 1965

Sister taxa: Baldwinonus, Eothyris, Oedaleops, Stereorhachis

Subtaxa: Stereophallodon ciscoensis

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Type: Stereophallodon ciscoensis

Ecology: