Pristiguana Temporal range: Maastrichtian ~70.6–66.0 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Reptilia
Order:	Squamata
Suborder:	Iguania
Family:	Iguanidae
Genus:	†Pristiguana
Species:	†P. brasiliensis
Binomial name
†Pristiguana brasiliensis Estes & Price 1973[1]

Pristiguana is an extinct genus of primitive iguanids from the Maastrichtian Marília Formation of Brazil.^[1] The type species is P. brasiliensis.

Pristiguana was discovered in the Bauru Group of Brazil. Its discoverers said, in 1973, that it is the oldest fossil lizard in the family Iguanidae. It resembles living primitive South American iguanids in some features, and shares some features with teiids, too.

• Richard Estes and Llewellyn I. Price, Iguanid Lizard from the Upper Cretaceous of Brazil, Science, 18 May 1973, vol. 180. no. 4087, pp. 748–751 abstract