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

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40 THE DINOSAURS OF WYOMING Wyoming, accidentally discovered by Granger in 1897. During the six years quarrying at this locality a car load of dinosaur bones was shipped to N ew York each year. From this one locality were secured the remains of 73 animals-all of them dinosaurs excepting four crocodiles and five turtles. This was one of the greatest fossil "finds" ever made. The name "Bone Cabin" was adopted because a Mexican sheepherder had used the gigantic back bones as a foundation for his cabin. There were no surface rocks in the vicinity. At other places in Wyoming similar foundations were made of trunks of petrified trees and had been used to hold the claim or title to a plot of ground.
CHAPTER VII Occurrence of Dinosaurs in the State of Wyorning The geographical distribution of the known deposits of dinosaurs in Wyoming shows that these animal remains occurred in selected groups, instead of being scattered singly over wide areas. This is the general situation, but isolated specimens, either single bones or pieces of bones, or incomplete skeletons, are likewise found. A number of the larger deposits are indicated by the large stars in the map in figure 7. The areas in Wyoming are only a part of a greater area of subsidence, as explained by Mr. Brown. Doubtless there are many more large deposits awaiting the searcher after fossils. The quarries opened so far were discovered because erosion had uncovered bones to indicate the positions of buried skeletons. The areas where dinosaur bones are now found doubtless represent favorable spots in the marshy lowlands which occu·· pied the region after the withdrawal of the seas. The map shown in figure 8 reveals the abundance of fossils in a given area, about which dinosaur bones are rare or wanting entirely. Search for dinosaur bones which have been exposed by erosion should be made along the base of "talus slopes," in gullies, or in the cliffs themselves. A little practice will enable the observer to distinguish fragments of fossil bone from other broken detritus. It is quite exciting to follow up such "leads," finding indications here and there, until the "lode" is located. Wyoming would do well to set aside, for a state park, an area where dinosaur bones are found, for future generations, illustrating the paleontology of the area by partially exposed dinosaurian remains, sheltered from the weather, and properly labeled. 41
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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
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FIGURE 41.-INJURIES AMO"G FOSSIL VE
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FIGURE 42.-FRACTURE 'AND NECROSIS I
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THE THREE-HORNED DINOSAURS 107 horn
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CHAPTER XIX Animals Which Lived wit
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CHAPTER XX Wyoming Dinosaurs Abroad
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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
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Page 88 and 89: CHAPTER XVII The Carnivorous Dinosa
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Page 104 and 105: 38 THE DINOSACRS OF WYOMING The hug
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
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Page 119 and 120: FIGURE 14. The Haemangioma. or vasc
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