A concise, detailed review of the history of reptiles, with an emphasis on the tetrapods, or four-legged vertebrates.Concise detailed review amply illustratedof the astonishing creatures that ruled the earth for some sixty million years, with particular emphasis on the tetrapods (four-legged vertebrates that lived during the years of reptilian dominance). Also examines interrelationships between amphibians and reptiles, birds and mammals, and between these creatures and their environments.