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Iguania is the suborder of Squamata
Squamata

Squamata, or the scaled reptiles, is the largest recent order of reptiles, including lizards and snakes. Members of the order are distinguished by their skins, which bear horny scale or shields....
 (snakes and lizards) that contains the iguanas, chameleon
Chameleon

Chameleons are a distinctive and highly specialized clade of lizards. They are distinguished by their parrot-like zygodactylous feet, their separately mobile and stereoscopic eyes, their very long, highly modified, and rapidly extrudable tongues, their swaying gait, and the possession by many of a prehensile tail, crests or horns on their...
s, agamids, and "New World
New World

The New World is one of the names used for the non-Eurasian/non-African parts of the Earth, specifically the Americas and Australasia. When the term originated in the late 15th century, the Americas were new to the Europeans, who previously thought of the world as consisting only of Europe, Asia, and Africa ....
 lizards" such as anoles and Phrynosomatidae
Phrynosomatidae

Phrynosomatidae is a diverse family of lizards, found from Panama to the extreme south of Canada. Many members of the group are adapted to life in hot, sandy deserts, although the spiny lizards prefer rocky deserts or even relatively moist forest edges, and the short-horned lizard lives in prairie or sagebrush environments....
. The Iguania
Iguania

Iguania is the suborder of Squamata that contains the iguanas, chameleons, agamids, and "New World lizards" such as anoles and Phrynosomatidae....
 form the sister group to the remainder of the squamata. They are largely arboreal and have primitively fleshy, non-prehensile tongues, but this condition is obviously highly modified in the chameleons. This clade
Clade

A clade is a term used in modern alpha taxonomy, the scientific classification of living and fossil organisms, to describe a monophyletic group, defined as a group consisting of a single common ancestor and all its descendants.The term "monophyletic group" is used in this article in the conventional sense of "an a...
 includes the following :






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Iguania is the suborder of Squamata
Squamata

Squamata, or the scaled reptiles, is the largest recent order of reptiles, including lizards and snakes. Members of the order are distinguished by their skins, which bear horny scale or shields....
 (snakes and lizards) that contains the iguanas, chameleon
Chameleon

Chameleons are a distinctive and highly specialized clade of lizards. They are distinguished by their parrot-like zygodactylous feet, their separately mobile and stereoscopic eyes, their very long, highly modified, and rapidly extrudable tongues, their swaying gait, and the possession by many of a prehensile tail, crests or horns on their...
s, agamids, and "New World
New World

The New World is one of the names used for the non-Eurasian/non-African parts of the Earth, specifically the Americas and Australasia. When the term originated in the late 15th century, the Americas were new to the Europeans, who previously thought of the world as consisting only of Europe, Asia, and Africa ....
 lizards" such as anoles and Phrynosomatidae
Phrynosomatidae

Phrynosomatidae is a diverse family of lizards, found from Panama to the extreme south of Canada. Many members of the group are adapted to life in hot, sandy deserts, although the spiny lizards prefer rocky deserts or even relatively moist forest edges, and the short-horned lizard lives in prairie or sagebrush environments....
. The Iguania
Iguania

Iguania is the suborder of Squamata that contains the iguanas, chameleons, agamids, and "New World lizards" such as anoles and Phrynosomatidae....
 form the sister group to the remainder of the squamata. They are largely arboreal and have primitively fleshy, non-prehensile tongues, but this condition is obviously highly modified in the chameleons. This clade
Clade

A clade is a term used in modern alpha taxonomy, the scientific classification of living and fossil organisms, to describe a monophyletic group, defined as a group consisting of a single common ancestor and all its descendants.The term "monophyletic group" is used in this article in the conventional sense of "an a...
 includes the following :
  • Family Agamidae
    Agamidae

    Agamids, lizards of the family Agamidae, include more than 300 species in Africa, Asia, Australia, and a few in Southern Europe. phylogenetics they may be sister to the Iguanidae, and have a similar appearance....
     – Agamid Lizards, Old World Arboreal Lizards
  • Family Chamaeleonidae – Chameleons
  • Family Corytophanidae
    Corytophanidae

    Corytophanidae is a family of lizards also called casque head lizards or helmeted lizards. They typically have well-developed head crests in the shape of a casque....
     – Helmet Lizards
  • Family Crotaphytidae
    Crotaphytidae

    The family Crotaphytidae, or Collared lizards, are desert-dwelling reptiles native to the Southwest USA and northern Mexico. They are very fast-moving animals, with long limbs and tails, and are carnivore, feeding mainly on smaller lizards....
     – Collared Lizards, Leopard Lizards
  • Family Hoplocercidae
    Hoplocercidae

    The hoplocercids are a family of lizards native to the tropical forests of Central America and South America. They are predominantly terrestrial, and some use their spiny tails to dig shallow retreats in the ground, although they do not build true burrows....
     – Dwarf and Spiny Tail Iguanas
  • Family Iguanidae
    Iguanidae

    The Iguanidae is a family of lizards, composed of iguanas and related species....
     – American Arboreal Lizards, Chuckwallas, Iguanas, Iguanids
  • Family Opluridae
    Opluridae

    The Opluridae, or Madagascan Iguanas, are a family of moderately sized lizards native to Madagascar. The family includes species that live amongst rocks, some that live in trees, and one that inhabits sand dunes....
     – Malagasy Iguanas
  • Family Phrynosomatidae
    Phrynosomatidae

    Phrynosomatidae is a diverse family of lizards, found from Panama to the extreme south of Canada. Many members of the group are adapted to life in hot, sandy deserts, although the spiny lizards prefer rocky deserts or even relatively moist forest edges, and the short-horned lizard lives in prairie or sagebrush environments....
     – North American Spiny Lizards
  • Family Polychrotidae
    Polychrotidae

    Polychrotidae is a family of lizards commonly known as Anoles . Some authorities place the anoles in subfamily Polychrotinae of the family Iguanidae....
     – Anoles and kin
  • Family Tropiduridae
    Tropiduridae

    The Tropiduridae is a family of lizards native to South America and the West Indies. Most are ground-dwelling animals, and the family includes some lizards adapted to relatively cold climates, including those of the Andes mountains and Tierra del Fuego....
     – Tropidurid Lizards