Although there is much controversy regarding the taxonomic status of the families in the infraorder "Iguania," 8 separate families (not subfamilies) have been established, and this has been widely accepted (with a few exceptions).
Family: Iguanidae
Genus: Amblyrhynchus (Marine iguana)
Genus: Conolophus (Land iguanas)
Genus: Cyclura ("Island" iguanas)
Genus: Iguana (Green iguana, etc)
Genus: Brachylophus (Fiji banded, etc)
Genus: Ctenosaura (Spinytail iguanas, etc)
Genus: Dipsosaurus (Desert iguana)
Genus: Sauromalus (Chuckwallas)
Family: Corytophanidae
Genus: Basiliscus (basilisks)
Genus: Corytophanes (Helmeted iguanas)
Genus: Laemanctus (Casque-headed lizards)
Family: Crotaphytidae
Genus: Crotaphytus (collared lizards)
Genus: Gambelia (leopard lizards)
Family: Hoplocercidae
Genus: Enyalioides (Dwarf iguanas)
Genus: Hoplocercus
Genus: Morunasaurus (Other spinytails)
Family: Opluridae
Genus: Chalarodon (Madagascar iguana)
Genus: Oplurus (Madagascan swifts)
Family: Phrynosomatidae
Genus: Callisaurus (zebra tail)
Genus: Cophosaurus (earless lizard)
Genus: Holbrookia (other earless)
Genus: Petrosaurus (banded rock)
Genus: Phrynosoma (horned lizards)
Genus: Sator
Genus: Sceloporus (Spiny/ fence lizards)
Genus: Uma (fringe-toed lizards)
Genus: Urosaurus (Brush lizards)
Genus: Uta (side-blotched lizards)
Family: Polychrotidae (Anoles... 200+ species in 10 genera!)
Genus: Anolis
Genus: Norops
Genus: Phenacosaurus
Genus: Polychrus
Genus: Diplolaemus
Genus: Leiosaurus
Genus: Pristidactylus
Genus: Anisolepis
Genus: Enyalius
Genus: Urostrophus
Family: Tropiduridae (280+ species of "neotropical ground lizards" in 13 genera)
Genus: Leiocephalus
Genus: Ctenoblepharys
Genus: Liolaemus
Genus: Phymaturus
Genus: Microlophus
Genus: Plesiomicrolophus
Genus: Plica
Genus: Stenocercus
Genus: Tropidurus
Genus: Uracentron
Genus: Uranoscodon
Genus: Eurolophosaurus
Genus: Strobilurus
Enjoy! 
Fabián
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Fabián Aguirre
Zookeeper/ Freshwater Aquarist
Department of Herpetology and Freshwater Biology
The Dallas World Aquarium
(214) 720-2224
fabian@dwazoo.com
www.dwazoo.com


