Chapter

Iguanians

Eric R. Pianka and Laurie J. Vitt

in Lizards

Published by University of California Press

Published in print September 2003 | ISBN: 9780520234017
Published online March 2012 | e-ISBN: 9780520939912 | DOI: http://dx.doi.org/10.1525/california/9780520234017.003.0008
Iguanians

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This chapter discusses the morphology, phylogenetic relationships, distribution, and evolutionary history of iguanians. The Iguania is the sister taxon to all other lizards and contains three families: Iguanidae, Agamidae, and Chamaeleonidae. Included are some of the most bizarre lizards, the true chameleons of Africa and Madagascar. Chameleons are adorned with often striking morphological ornamentation, and their behavioral antics are right in line with other iguanians. All Iguania exhibit an ancestral condition shared with the tuatara: a fleshy tongue and lingual prehension of small prey.

Keywords: morphology; phylogenetic relationships; evolutionary history; iguanians; Iguania; Iguanidae; Agamidae; Chamaeleonidae; chameleon; tuatara

Chapter.  14530 words.  Illustrated.

Subjects: Zoology and Animal Sciences

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