Reptilia - Squamata - Iguanidae
Parent taxon: Iguanidae according to M. A. Norell 1989
See also Macey et al. 1997 and Norell and de Queiroz 1991
Sister taxa: Abas, Aciprion, Amblyrhynchus, Anisolepis, Anolbanolis, Basiliscus, Brachylophus, Cadurciguana, Callisaurus, Chamaeleolis, Chamaelinorops, Cnephasaurus, Corytophanes, Corytophaninae, Crotaphytus, Ctenosaura, Cyclura, Cypressaurus, Diplolaemus, Enyalioides, Enyalius, Erichosaurus, Geiseltaliellus, Harrisonsaurus, Holbrookia, Hoplocercus, Iguana, Laemanctus, Lapitiguana, Leiocephalus, Leiosaurus, Morunasaurus, Oreithyia, Paradipsosaurus, Paranolis, Parasauromalus, Petrosaurus, Phenacosaurus, Phrynosomatinae, Pristidactylus, Pristiguana, Proiguana, Queironius, Sauromalus, Sceloporus, Suzanniwana, Swainiguanoides, Uracentron, Uranoscodon, Urosaurus, Urostrophus, Uta, Xihaina
Subtaxa: Armandisaurus Dipsosaurus Phrynosoma Pumilia
Ecology: ground dwelling omnivore
Distribution:
• Quaternary of United States (17: Arizona, California, Colorado, Kansas, Nevada, New Mexico, South Dakota, Texas collections)
• Blancan of Mexico (1), United States (4: California, Kansas, Nebraska)
• Hemphillian of Mexico (1)
• Miocene of United States (5: Florida, Nebraska, New Mexico, Wyoming)
• Deseadan of Argentina (1)
• Arikareean of United States (1: Florida)
Total: 30 collections including 39 occurrences