Squamata

Phrynosomatidae

Horned lizards

Corytophanidae

Casquehead Lizards

Crotaphytidae

Collared lizards

Leiocephalidae

Curly-tailed lizards

Iguanidae

Iguanas

Scinidae

Skinks

Phyllodactylidae

Leaf-toed geckos

Gekkonidae

Geckos

Helodermatidae

Beaded lizards

Sphaerodactylidae

Geckos

Sphenomorphidae

Skinks

Chamaeleonidae

Chameleons

Agamidae

Old world iguanids

Xantusiidae

Night lizards

Varanidae

Monitor lizards

Dactyloidae

Anoles

Anguidae

Legless/alligator lizards

Teiidae

Whiptail lizards

Anniellidae

American legless lizards

Lacertidae

Wall/true lizards

Eublepharidae

Geckos

Mabuyidae

Neotropical skinks

Rhineuridae

Amphisbaenians

Viperidae

Vipers

Dipsadidae

South American rear-fanged snakes

Elapidae

Elapids

Pythonidae

Pythons

Leptotyphlopidae

Slender blind snakes

Acrochordidae

Wart snakes

Boidae

Boas

Colubridae

Colubrids

Natricidae

Garter/water/grass snakes

Typhlopidae

Blind snakes