Title: Principles of modern biology
Identifier: cu31924001154115 (find matches)
Year: 1964 (1960s)
Authors: Marsland, Douglas, 1899-
Subjects: Biology
Publisher: New York, Holt, Rinehart and Winston
Contributing Library: Cornell University Library
Digitizing Sponsor: MSN

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568 - Heredity and Evolution
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UWM*A^ Fig. 29-14. Whole skeleton of another dinosaur, Tyrannosaurus rex, from the Cretaceous strata of Hell Creek Basin, Montana. (Courtesy of the American Museum of Natural History, New York.) The early Mesozoic strata show a great (Figs. 29-14 and 29-15), and the flying reptiles diversification of the reptile group, not only (pterosaurs). Also in the early Mesozoic rocks as to forms resembling the modern lizards, one finds the first primitive mammals. But turtles, snakes, and so forth, but also as to the first birds, such as the toothed and clawed archaic forms like the gigantic dinosaurs Arcliaeopteryx (Fig. 29-16), are not found

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