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: Lepidosauromorpha according to M. J. Benton 1985
See also Augé and Rage 2006, Barrett and Evans 2002, Carroll 1982, Carroll 1988, Carroll and Thompson 1982, Ellenberger 1972, Gao and Fox 1996, Gardiner 1982, Gauthier et al. 1989, Haeckel 1866, Haubold 1974, Haughton and Brink 1954, Hay 1930, Jaekel 1910, Jaekel 1911, Kuhn 1966, Martinelli and Forasiepi 2004, Norell and de Queiroz 1991, Olson 1947, Olson 1966, Peng et al. 2001, Stritzke 1983, Sues and Schoch 2021, Sullivan 1986, Thurmond and Jones 1981 and Zittel 1890
Sister taxa: Anisodontosaurus, Blomosaurus, Coartaredens, Feralisaurus, Fraxinisaura, Kudnu, Lepidosauriformes, Marmoretta, Neosauroides, Paliguana, Paliguanidae, Saurosternidae, Sophineta, Tamaulipasaurus, Taytalura, Vellbergia, Vinitasaura
Subtaxa: Cargninia Dolichopodus Euposaurus Lacertoidopus Millerosauria Patricosaurus Pleurosauria Prolacertilia Rhynchocephalia Sauroeidepus Sphenodontia Sphenodontidae Weigeltisauria