The Dinosaurs of Wyoming - Wyoming State Geological Survey ...

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90 THE DINOSAURS OF WYOMING Carniyorous dinosaurs are always rare-much more so than those of the amphibious type, occurring in the same beds. A Brontosaurus skeleton, obtained in the Bone Cabin Quarry, shows seyeral bones, especially the spines of the tail bones (Figure 34), scored and bitten off, as though by some carni- FIGURE 33.-A LARGE CARNIVOROUS DINOSAUR FEEDING. -After Lucas. vorous animal which had either attacked the brontosaur when alive. or had feasted on the carcass. - When the Allosaurus jaw was compared with the marks on the brontosaur bones, it was found to fit them exactly, the spacing of the scratches being the same as the spacing of the teeth. Moreover, on taking out the brontosaur backbones from the quarry, a number FIGURE ?4. Part of the tail of a large amphibious dinosaur, Brontosaurus, showing grooves and scratches cut by the teeth of carnivorous dinosaurs on the neural spines and on the body of the backbone joint in the center. The cuts were made after the death 01 the amphibious dinosaur. Specimens in the American Museum of Natural HistonJ. Collected in Wyoming.-After Osborn.
FIGURE 15. Microscopic study of a portion of the periphery of the large tumor from the tail of a dinosaur, showing the osseous lacunae, with small canaliculi, arranged around a large vascular opening, thus simulating an Haversian system... The lacunae (bone cells) of the dinosaurs arc actually much smaller than other animals. Magnified 300 diameters.
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'The CVinosaurs of Wyoming By ROY L
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Tragedy of the Mesozoic All the ele
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The DINOSAURS of Wyoming By ROY L.
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LIST OF ILLUsTRA'frONS IX Figure 32
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PREFACE The subject of dinosaurs in
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CHAPTER 1. What Are the Dinosaurs?
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2 CHAPTER II The Geological Age of
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CHAPTER III Their Origin and Distri
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THEIR ORIGIN Ai"D DISTRIBUTIOK 23 A
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CHAPTER IV Historical Account of th
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28 THE DINOSA1.:RS OF WYOMING "How
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92 THE DIKOSAURS OF 'WYOMING of bro
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94 THE DI OSAURS OF WYOMI G small p
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'C '" FIGURE 40.-DISEASE AND INJURY
Page 40: FIGURE 41.-INJURIES AMO"G FOSSIL VE
Page 43 and 44: FIGURE 42.-FRACTURE 'AND NECROSIS I
Page 47: THE THREE-HORNED DINOSAURS 107 horn
Page 50: CHAPTER XIX Animals Which Lived wit
Page 53 and 54: CHAPTER XX Wyoming Dinosaurs Abroad
Page 58 and 59: CHAPTER XXII QLOSSARY Amphibious Di
Page 63: "SACRAL BRAIN" OF DIi\TOSAURS depar
Page 67 and 68: CHAPTER XIV Footprints of Dinosaurs
Page 70: CHAPTER XV The Armoured Dinosauria
Page 73 and 74: THE ARMOURED DIKOSAURIA 73 of penta
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Page 78 and 79: FIGURE 25.-RESTORATION OF THE PALAE
Page 80 and 81: 80 THE DINOSAURS OF WYOMING The lif
Page 82 and 83: 82 THE DINOSAURS OF WYOMING decesso
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Page 88 and 89: CHAPTER XVII The Carnivorous Dinosa
Page 94 and 95: 58 THE DINOSAURS OF WYOMING out lif
Page 98 and 99: 32 THE DIN"OSAURS OF WYOMIN"G bette
Page 100 and 101: 34 THE DINOSAURS OF WYOMING tured i
Page 102 and 103: 36 THE DINOSAL"RS OF WYOMING publis
Page 104 and 105: 38 THE DINOSACRS OF WYOMING The hug
Page 106 and 107: 40 THE DINOSAURS OF WYOMING Wyoming
Page 109 and 110: FIGURE 8. Map of Niobrara County. W
Page 111: DIFFERENT KINDS OF DIKOSACRS 45 "Co
Page 115 and 116: FIGURE IO.-PATHOLOGICAL LESIONS IN
Page 117 and 118: FIGURE
Page 119 and 120: FIGURE 14. The Haemangioma. or vasc
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