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Iguanid Lizard from the Upper Cretaceous of Brazil
Richard Estes and Llewellyn I. Price
New Series, Vol. 180, No. 4087 (May 18, 1973), pp. 748-751
Published by: American Association for the Advancement of Science
Stable URL: http://www.jstor.org/stable/1736914
Page Count: 4
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Pristiguana brasiliensis, new genus and species, from the Upper Cretaceous Baurú Formation of Brazil, is the oldest fossil referable to the living lizard family Iguanidae. It resembles living primitive South American iguanids in some features, but also shows similarity to members of the related family Teiidae. Iguanid fossils do not appear in North America until the early Eocene, probably by waif dispersal from South America during the late Paleocene or early Eocene. A southern continental (Gondwanan) origin of iguanids is more plausible than the northern one often suggested.
Science © 1973 American Association for the Advancement of Science