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Frost et al. (1989) redefined this family. The genera belonging to the different subfamilies were assigned to separate families. This view is not generally accepted.

1 Frost et al classification of iguanas

Family Iguanidae

• Genus Amblyrhynchus
• Genus Brachylophus
• Genus Conolophus
• Genus Ctenosaura
• Genus Cyclura
• Genus Dipsosaurus
• Genus Iguana
• Genus Sauromalus
• Genus Armandisaurus (extinct)
• Genus Lapitiguana (extinct)
• Genus Pumila (extinct)

2 Traditional classification

Family Iguanidae

• Subfamily CorytophaninaeCorytophanidae : Animalia : Chordata : Reptilia : Squamata : Sauria : Corytophanidae Classification Family Corytophanidae Genus Basiliscus Genus Corytophanes Genus Laemanctus Lizards Corytophanids.: casquehead lizards
• Subfamily Crotaphytinae: collared and leopard lizards
• Subfamily Hoplocercinae: wood lizards, clubtails
• Subfamily Iguaninae: iguanas and spinytail iguanas
• Subfamily Leiocephalinae
• Subfamily Leiosaurinae
• Subfamily Liolaeminae
• Subfamily Oplurinae: Madagascar iguanids
• Subfamily Phrynosomatinae: earless, spiny, tree, side-blotched and horned lizards)
  • Subfamily Polychrotinae: anoles
• Subfamily Tropidurinae: neotropical ground lizards

3 References

1. Frost, D.E. and R.E. Etheridge (1989) A Phylogenetic Analysis and Taxonomy of Iguanian Lizards (Reptilia: Squamata). Univ. Kansas Mus. Nat. Hist. Misc. Publ. 81
2. Frost, D.R., R. Etheridge, D. Janies and T.A. Titus (2001) Total evidence, sequence alignment, evolution of Polychrotid lizards, and a reclassification of the Iguania (Squamata: Iguania). American Museum Novitates 3343: 38 pp.