Vertebrata - Pelycosauria

Full reference: R. L. Carroll. 1964. The earliest reptiles. Journal of the Linnean Society (Zoology) 45(304):61-83

Parent taxon: Pelycosauria according to R. L. Carroll 1964

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

Subtaxa: Protoclepsydrops haplous

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Type: Protoclepsydrops haplous

Ecology: