Amniota - Pelycosauria

Full reference: R. R. Reisz, M. J. Heaton, and B. R. Pynn. 1982. Vertebrate Fauna of Late Pennsylvanian Rock Lake Shale near Garnett, Kansas: Pelycosauria. Journal of Paleontology 56(3):741-750

Parent taxon: Pelycosauria according to R. R. Reisz et al. 1982

Sister taxa: Bathygnathus, Caseamorpha, Caseasauria, Clepsydropidae, Edaphosauria, Luperosaurus, Milosaurus, Nitosaurus, Ophiacodontia, Protoclepsydrops, Scoliomus, Thalattosauria, Trichasaurus

Subtaxa: Xyrospondylus ecordi

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Type: Edaphosaurus ecordi

Ecology: