Reptilia - Squamata - Xantusiidae
Alternative spellings: Xanthusiidae, Xantusidae
Parent taxon: Scincoidea according to R. A. Pyron et al. 2013
See also Alifanov 1993, Carroll 1988, Cope 1875, Estes 1983, Estes et al. 1988, Frank and Ramus 1996, Gadow 1898, Gao and Fox 1996, Kuhn 1946, Kuhn 1966, Lee and Caldwell 2000, McGrew et al. 1959, Norell 1989, Nydam et al. 2013, Perrier 1928, Schatzinger 1980, Seiffert 1975, Smith 2006 and Sullivan 1991
Sister taxa: Carusia, Cordylidae, Cordyliformes, Dakotaseps, Dimekodontosaurus, Eoxanta, Estescincosaurus, Feyliniidae, Foliesaurus, Gerrhosauridae, Globaura, Hymenosaurus, Myrmecodaptria, Ornatocephalus, Paramacellodidae, Parmeosaurus, Pyrenasaurus, Scincidae, Scincoideus, Tepexisaurus, Webbsaurus
Subtaxa: Catactegenys Cricosaura Klauberina Lepidophyma Palaeoxantusia Palepidophyma Paracontogenys Xantusia
Ecology: ground dwelling insectivore-herbivore
Distribution:
• Quaternary of Mexico (1 collection)
• Blancan of United States (1: California)
• Miocene of United States (1: South Dakota)
• Eocene of Canada (1: Saskatchewan), United States (28: California, New Mexico, North Dakota, Utah, Wyoming)
• Paleocene of United States (3: Montana, Wyoming)
• Cretaceous of Mongolia (1), Romania (1), United States (3: Montana, Texas)
Total: 40 collections including 54 occurrences