Prolacerta and the protorosaurian reptiles; Part I

Abstract

"A second specimen of Prolacerta from the lower Triassic of South Africa is closely related to Protorosaurus speneri. Since Prolacerta must remain closely associated with the Permian 9Eosuchia9 it now becomes necessary to place Protorosaurus in that group. It may be preferable to retain the old name Protorosauria in place of 9Eosuchia.9 Prolacerta shows characters intermediate between Youngina and the lizards, also characters intermediate between Youngina and the rhynchocephalians. Prolacerta may be somewhat closer to the lizards as it seems to be incipiently streptostylic."