Iguania is an infraorder of squamate reptiles that includes iguanas, chameleons, agamids, and New World lizards like anoles and phrynosomatids. Using morphological features as a guide to evolutionary relationships, the Iguania are believed to form the sister group to the remainder of the Squamata, [1] which comprise nearly 11,000 named species ...

A phylogeny based on nuclear protein-coding genes, reviewed by Vidal and Hedges (2009), suggested that the subclade Iguania is in a group with snakes and anguimorphs (lizards).

The ancestors of all lizards possessed an ability to capture and manipulate prey with the tongue (lingual prehension). Iguania retained the ability; however, this likely precluded…

Iguanidae is thought to be the sister group to the collared lizards (family Crotaphytidae). This family likely first appeared in Cenozoic, previously identified two Cretaceous genera (Pristiguana and Pariguana) are unlikely to belong to this family. [2] The subfamily Iguaninae, which contains all modern genera, likely originated in the earliest Paleocene, about 62 …

An early classification of the Iguania by Charles Camp in 1923 defined three families: Iguanidae - Approximately 956 species of iguanas, anoles, horned lizards, collared lizards, and relatives.

Iguania is an infraorder of squamate reptiles that includes iguanas, chameleons, agamids, and New World lizards like anoles and phrynosomatids. Using morphological features as a guide to evolutionary relationships, the Iguania are believed to form the sister group to the remainder of the Squamata, which comprise nearly 11,000 named species ...

Mar 20, 2025 · The Fiji iguanas are an outlier All told, there are over 2,100 species in the suborder Iguania, a large group that also includes animals such as chameleons, anoles, bearded dragons and horned lizards.

Mar 16, 2025 · These three families form a group called Iguania, representing an early divergence within the lizard lineage. Essentially, while all lizards are related in some way, iguanas, chameleons, and agamids share a more recent common ancestor, making them closer kin.

This group of rel­a­tively large, dry-adapted lizards is un­der­go­ing much sys­tem­atic re­vi­sion, and as de­fined here is equiv­a­lent to the pre­vi­ously iden­ti­fied sub­fam­ily Iguani­nae (see Frost and Etheridge 1989). Under this strict clas­si­fi­ca­tion, there are eight iguanid gen­era, and ap­prox­i­mately 35 species cur­rently rec­og­nized. Iguanids ...

Iguanomorpha (stem + crown Iguania) is a diverse squamate clade with members that predominate many modern American lizard ecosystems. However, the temporal and palaeobiogeographic origins of its co...