Full reference: A. Günther. 1867. Contribution to the Anatomy of Hatteria (Rhynchocephalus, Owen) [Abstract]. Proceedings of the Royal Society of London 15:460-462
Parent taxon: Lepidosauria according to M. E. H. Jones et al. 2013
See also Cope 1871, Cope 1875, Frank and Ramus 1996, Gardiner 1982, Günther 1867, Günther 1886, Haughton and Brink 1954, Hay 1902, Huene 1954, Kuhn 1946, Kuhn 1964, Kuhn 1966, Lortet 1892, Olson 1966, Osborn 1903, Osborn 1903, Osborn 1904, Roxo 1937, Simon and Kellner 2003, Swinton 1934, Woodward 1898 and Zittel 1890
Sister taxa: Cargninia, Euposaurus, Lacertoidopus, Millerosauria, Patricosaurus, Pleurosauria, Prolacertilia, Sauroeidepus, Squamata, Weigeltisauria
Subtaxa: Clarazisauria Eifelosaurus Gephyrosauridae Gephyrosaurus Pachystropheidae Sauranodontes Sphenodontia Tholodontidae Vadasaurus
Ecology: