Osteichthyes

PaleoDB taxon number: 38882

Synonym: Protherosauria Osborn 1902 [replaced name] (taxon 172478)

Full reference: H. F. Osborn. 1903. On the primary division of the Reptilia into two sub-classes, Synapsida and Diapsida. Science 17(424):275-276

Parent taxon: Amniota according to A. Meyer and R. Zardoya 2003

Sister taxa: Cincosaurus, Colognathus, Dicondylia, Euamniota, Gnorhimosuchus, Kraterokheirodon, Mesosauria, Monocondylia, Plagiaulax dawsoni, Sauropsida, Timanosaurus, Vitalia

Subtaxa: Caseasauria, Chelichnopodidae, Eupelycosauria, Ophiacomorpha, Pelycosauria

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Ecology: