Leiosauridae
35 species.
- Alvaro's AnolePristidactylus alvaroi
- Araucanía GrumblerPristidactylus araucanus
- Argentine AnolePristidactylus achalensis
- Bell's AnoleLeiosaurus bellii
- Bibron's IguanaDiplolaemus bibronii
- Black-collared Green LizardPristidactylus nigroiugulus
- Boulenger's Tree LizardUrostrophus grilli
- Brazilian Fathead AnoleEnyalius boulengeri
- Brazilian Fathead AnoleEnyalius brasiliensis
- Brazilian Steppe IguanaUrostrophus vautieri
- Burmeister's AnolePristidactylus scapulatus
- Casuhatien AnolePristidactylus casuhatiensis
- Catamarca Smooth IguanaLeiosaurus catamarcensis
- D'Orbigny's Banded AnolePristidactylus fasciatus
- Darwin's IguanaDiplolaemus darwinii
- El Volcán GrumblerPristidactylus volcanensis
- Gallardo's Steppe IguanaUrostrophus gallardoi
- Ihering's Fathead AnoleEnyalius iheringii
- Jackson's Fathead AnoleEnyalius perditus
- Jaguar Smooth IguanaLeiosaurus jaguaris
- Leeh's Fathead AnoleEnyalius leechii
- Leopard IguanaDiplolaemus leopardinus
- Mendoza Smooth IguanaLeiosaurus paronae
- Six-banded Patagonian LizardDiplolaemus sexcinctus
- Southern GrumblerPristidactylus torquatus
- Two-lined Fathead AnoleEnyalius bilineatus
- Valeria's GrumblerPristidactylus valeriae
- Wied's Fathead AnoleEnyalius catenatus
- Wiegmann's Tree LizardUrostrophus undulatus
- Enyalius bibronii
- Enyalius capetinga
- Enyalius erythroceneus
- Enyalius pictus
- Urostrophus chungarae
- Urostrophus longicauda