ammonites
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Gateway to the Paleobiology Database
†family Eothyrididae Romer and Price 1940 (pelycosaur)

Amniota - Pelycosauria

Full reference: A. S. Romer and L. I. Price. 1940. Review of the Pelycosauria. Geological Society of America Special Paper 28:1-538

Parent taxon: Caseasauria according to H. C. Maddin et al. 2008

Sister taxon: Caseidae

Subtaxa: Baldwinonus, Eothyris, Oedaleops, Stereophallodon, Stereorhachis

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Ecology: