All Iguanian Lizard Families (Iguania)

Corytophanidae is a family of iguanian lizards, also called casquehead lizards or helmeted lizards, endemic to the New World.

The Phrynosomatidae are a diverse family of lizards found from Panama to the extreme south of Canada.

The Polychrotidae family of iguanian lizards contains the living genus Polychrus (commonly called bush anoles) and the extinct genus Afairiguana.

Leiosauridae is a family of iguanian lizards containing six genera and 34 species.

The Tropiduridae are a family of iguanian lizards.

Liolaemidae are a family of iguanian lizards.

Leiocephalus, also known as the curlytail lizards or curly-tailed lizards, is a genus of iguanian lizards restricted to the West Indies.

The Crotaphytidae, or collared lizards, are a family of desert-dwelling reptiles native to the Southwestern United States and northern Mexico.

The Opluridae, or Madagascan iguanas, are a family of moderately-sized lizards native to Madagascar and Grande Comore.

Hoplocercidae are a family of lizards native to the tropical forests, woodlands and savanna-like habitats of Central and South America.

Agamidae is a family containing 582 species in 64 genera of iguanian lizards indigenous to Africa, Asia, Australia, and a few locations in Southern Europe.

Chameleons (family Chamaeleonidae) are a distinctive and highly specialized clade of Old World lizards with 200 species described as of June 2015.

Anolidae are a family of lizards commonly known as anoles (singular anole US: ) and native to warmer parts of the Americas, ranging from southeastern United States to Paraguay.

The Iguanidae is a family of lizards composed of the iguanas, chuckwallas, and their prehistoric relatives, including the widespread green iguana.