. The dinosaur book : the ruling reptiles and their relatives. Dinosaurs; Reptiles, Fossil. The two-footed ancestors of all the < dinosaurs, the Thecodontia, gave rise to two main orders of dinosaurs and six suborders, as shown above. THECODONTIA Ancestors of all dinosaurs. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Colbert, Edwin H. (Edwin Harris), 1905-2001; Germann, John C. New York, N. Y. : American Museum of Na
. The dinosaur book : the ruling reptiles and their relatives. Dinosaurs; Reptiles, Fossil. The two-footed ancestors of all the < dinosaurs, the Thecodontia, gave rise to two main orders of dinosaurs and six suborders, as shown above. THECODONTIA Ancestors of all dinosaurs. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Colbert, Edwin H. (Edwin Harris), 1905-2001; Germann, John C. New York, N. Y. : American Museum of Natural History
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Keywords: ., bookcentury1900, bookpublishernewyork, booksubjectreptilesfossil
