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

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102 THE DINOSAURS OF WYOMIKG stopped at Douglas, Wyoming, and there met a former acquaintance, Mr. Deforest Richards, afterwards governor of \Vyoming, now deceased, who introduced me to Mr. Charles A. Guernsey. This gentleman, having a general but enthusiastic interest in matters relating to natural history, and especially to geology and paleontology, had, through a long residence in the country as ma!lager and owner of the 'Three-Nine' cattle ranch, succeeded in bringing together a considerable collection of fossils. On inspecting this collection, through the kindness and at the request of Mr. Guernsey, I was impressed with its value, for it contained many specimens of great perfection and .beauty, and only a glance was needed to show that the entire lot had been brought together with great judgment and discrimination, such as are rarely seen in amateurs and such as might with profit. be emulated even in some of our public museums, especially in their exhibition series. "Among the many interesting things in this collection I was at once struck with a fragment of a very large horn core. This fragment was about 18 inches long and perhaps 8 inches in least diameter at the base, which was hollow, the cavity being filled with a hard, brown sandstone closely resembling the sandstone concretions that are so abundant in the Laramie. On inquiry Mr. Guernsey informed me that the specimen had been taken from a skull several feet in length which had been fOU1id by his ranch foreman, Mr. Edmund B. \Vilson, completely embedded in a hard sandstone concretion, weighing not less than 2,000 pounds, that lay in the bottom of a deep canyon about 35 miles north of Lusk, \iVyoming. Observing my interest in the specimen, Mr. Guernsey very kindly assured me that if I wished to see the skull he would at some future time conduct me to the. locality. "Having completed my season's work ... I returned to New Haven on January 3rd, 1889. In the meailtime.I had written Profesor Marsh several letters concerning this peculiar horn core and he had published, in December 1888, his description of Ceratops montanus, from the material which I had collected in the early part of the season in Montana and which for the first time demonstrated the presence of horned dinosaurs in the Judith River beds. This, together with the fact that Cannon, Eldridge and Cross had already recovered undoubted dinosaur remains from the Denver beds, vvhere the type of Bison alticornis had been found in situ, caused Professor Marsh to doubt the mammalian nature of the pair of horn cores which constituted the type of the latter and of which I had only seen figures. When I examined these horn cores, I at once recognized the striking similarity. between them and the horn core in the collection of Mr. Guernsey. I immediately wrote Mr.Guernsey requesting him to send on his specimen for further examination and comparison. He very kindly and promptly complied with this request, and on its arrival Professor Marsh at once recognized the remarkable similarity between the two specimens, .and, after his characteristic nature, became immediately possessed with a burning desire to secure the skull and learn the exact geological horizon from which it came. Accordingly, on February 20, 1889, I left New Haven
FIGURE 42.-FRACTURE 'AND NECROSIS IN ANCIENT REPTILES AND IN THE MUSK-OX. a=Jaw of a three-horned dinosaur showing, at the hand, a green stick fracture, which had healed. Specimen in Yale University Museum, collected in the Lance Formation of Niobrara County. Wyoming.-Courtesy of Professor R. S. Lull. b=Skull of a Pleistocene Musk-ox showing, at the arrow, a necrosis. c=Skull of a Tria.ssic phytosaur showing effects of a fracture. The phytosaurs were contemporaneous with the early, small, Triassic Dinosaurs. 103
Page 1 and 2: 'The CVinosaurs of Wyoming By ROY L
Page 3: Tragedy of the Mesozoic All the ele
Page 6: The DINOSAURS of Wyoming By ROY L.
Page 10 and 11: LIST OF ILLUsTRA'frONS IX Figure 32
Page 12 and 13: PREFACE The subject of dinosaurs in
Page 15: CHAPTER 1. What Are the Dinosaurs?
Page 18 and 19: 2 CHAPTER II The Geological Age of
Page 21 and 22: CHAPTER III Their Origin and Distri
Page 24 and 25: THEIR ORIGIN Ai"D DISTRIBUTIOK 23 A
Page 27 and 28: CHAPTER IV Historical Account of th
Page 29 and 30: 28 THE DINOSA1.:RS OF WYOMING "How
Page 32 and 33: 92 THE DIKOSAURS OF 'WYOMING of bro
Page 34 and 35: 94 THE DI OSAURS OF WYOMI G small p
Page 38 and 39: 'C '" FIGURE 40.-DISEASE AND INJURY
Page 40: FIGURE 41.-INJURIES AMO"G FOSSIL VE
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 90 and 91: 90 THE DINOSAURS OF WYOMING Carniyo
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58 THE DINOSAURS OF WYOMING out lif
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32 THE DIN"OSAURS OF WYOMIN"G bette
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34 THE DINOSAURS OF WYOMING tured i
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36 THE DINOSAL"RS OF WYOMING publis
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38 THE DINOSACRS OF WYOMING The hug
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40 THE DINOSAURS OF WYOMING Wyoming
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FIGURE 8. Map of Niobrara County. W
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DIFFERENT KINDS OF DIKOSACRS 45 "Co
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FIGURE IO.-PATHOLOGICAL LESIONS IN
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FIGURE
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FIGURE 14. The Haemangioma. or vasc
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