Reptiles

Submitted by: Taylor

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The extinct flying reptiles, called pterosaurs or pterodactyls, are now thought to have been warm-blooded and covered with hairAlso, the dinosaurs are also now considered by many authorities to have been warm-blooded The earliest known bird, archaeopteryx, is now regarded by many to have been a small dinosaur, despite its covering of feathers The extinct ancestors of the mammals, the therapsids, or mammallike reptiles, are also believed to have been warm-blooded and haired Proposals have been made to reclassify the pterosaurs, dinosaurs, and certain other groups out of the class Reptilia into one or more classes of their own The class Reptilia is divided into 6 to 12 subclasses by different authoritiesThis includes living and extinct species