Lee, M. S. Y. 2001 Molecules, morphology, and the monophyly of diapsid reptiles Contributions to Zoology 70 1-18 OUTGROUP Caseidae Ophiacodontidae Edaphosauridae Sphenacodontidae Gorgonopsia CYNODONTIA Millerettidae Acleistorhinidae Lanthanosuchidae Nycteroleteridae Procolophonoidea Pareiasauridae TESTUDINES Captorhinidae Protorothyrididae Araeoscelididae Claudiosauridae Younginiformes Placodontia Eosauropterygia Kuehneosauridae RHYNCHOCEPHALIA SQUAMATA Choristodera Prolacertiformes ARCHOSAURIFORMES Rhynchosauria Trilophosauridae Osteology Maximum Parsimony Based on reanalysis of the original matrix. Lee_2001a