Family Crotaphytidae Frost and Etheridge 1989 (squamates)
Reptilia - Squamata - Crotaphytidae
Parent taxon: Pleurodonta according to J. L. Conrad and M. A. Norell 2007
See also Conrad et al. 2007 and Hollenshead and Mead 2006
Sister taxa: Bifurcodentodon, Caeruleodentatus, Corytophanidae, Erichosaurus bombimaxila, Erichosaurus debilis, Erichosaurus diminutus, Gobiguania, Hoplocercidae, Igua, Iguanidae, Kopidosaurus, Phrynosomatidae, Polychrotidae, Thecaglossa, Tropiduridae, Typhlophthalmi
Subtaxa: Gambelia
Ecology: planktonic suspension feeder
Distribution:
• Blancan of United States (2: California, Nevada collections)
• Miocene of United States (3: Wyoming)
Total: 5 collections each including a single occurrence