Title : Animals of the past; an account of some of the creatures of the ancient world
Identifier : animalsofpastacc00luca ( find matches )
Year : 1922 ( 1920s )
Authors : Lucas, Frederic A. (Frederic Augustus), 1852-1929
Subjects : Paleontology
Publisher : New York
Contributing Library : Internet Archive
Digitizing Sponsor : Internet Archive

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84 ANIMALS OF THE PAST quite small, in some places, particularly in the sacral region, it is subject to considerable enlargement. This is notably true of Stegosaurus, where the sacral en- largement is twenty times the bulk of the puny brain—a fact noted by Professor Marsh, and seized upon b)^ the newspapers, which announced that he had discovered a Dinosaur with a brain in its pelvis.
Text Appearing After Image:
Skulls of Triceratops and Trachodox Illustrating the small size of the brains shown in black. The brains of these animals, twice the bulk of an elephant, were the size of a man's fist. In their great variety of size and shape the Dinosaurs form an interesting parallel with the Marsupials of Australia. For just as these are, as it were, an epitome of the class of mammals, mimicking the herbivores, car- nivores, rodents and even monkeys, so there are carniv- orous and herbivorous Dinosaurs—Dinosaurs that

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