Full reference: E. Haeckel. 1866. Generelle Morphologie der Organismen, Allgemeine Grundzuge der Organischen Formen-Wissenschaft, Mechanisch Begründet Durch die von Charles Darwin Reformirte Descendez-Theorie. Verlag von Georg Reimer, Berlin CLX-462
Parent taxon: Cotylosauria according to M. Ruta et al. 2003
See also Benton 1985, Gardiner 1982, Gauthier et al. 1989, Gauthier et al. 1988, Haeckel 1866, Laurin and Reisz 1995 and Sues and Olsen 1993
Sister taxa: Archeria, Bathyglyptus, Captorhiniformes, Captorhinomorpha, Chamasaurus, Conodectiformes, Datheosauri, Diadectiformes, Diadectomorpha, Diadectosauria, Gilmoreichnus, Gymnarthriformes, Labidosauria, Limnoscelia, Pantyliformes, Pantyloidea, Pareiasauriformes, Procolophonipus, Sauraviformes, Solenodonsauridae, Tomicosaurus, Trilophosauria, Varanopus
Subtaxa: Colognathus Dicondylia Enigmatopus Euamniota Gnorhimosuchus Kraterokheirodon Mesosauria Monocondylia Plagiaulax dawsoni Recumbirostra Sauropsida Synapsida Timanosaurus Vitalia