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Reptilia
Reptiles:
General Information
References

Orders

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General Information

Animals of the class Reptilia. They are poikilothermic ("Cold-blooded" but actually with varying body temperature).

Characteristics distinguishing them from Amphibia include horny skin, metanephric kidney, by the embryo being enclosed in an egg-shell and having a protective amnion and an allantois; and from birds and mammals by the absence of special features, such a hair and feathers of those two groups and presence of both right and left systemic arches (fourth aortic arch - main blood supply in adult for body other than head).

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References

Primary References at the level of this taxa
B87 Norman Frank and Erica Ramus
A Complete Guide to Scientific and Common Names of Reptiles and Amphibians of the World
B79 Lynn Margulis and Karlene V Schwartz
Five Kingdoms - An Illustrated Guide to the Phyla of Life on Earth, 3rd Edition
B73 Eleanor Lawrence
Henderson's Dictionary of Biological Terms, 11th Edition

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