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

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36 THE DINOSAL"RS OF WYOMING published in 1896, was the only yolume he lived to see published. His projected treatise on the three-horned dinosaurians, was completed after his death by Hatcher and Lull. His work on the armored dinosaurs has been completed by Gilmore and Osborn has the memoir on the Sauropoda (amphibious dinosaurs) under preparation. The noted men who worked for and with Marsh became teachers of ability, and investigators in branches of vertebrate paleontology other than dinosaurs. Especially to be noted, among the early workers, was S. 'IV. Williston, who had received training under Professor Benjamin F. Mudge, who had collected for Marsh, footprints from the Coal Measures of Kansas, and some fossils from the Niobrara Cretaceous chalk. Mudge at that time was a teacher at the Kansas Agricultural College at Manhattan, and from him Vvilliston learned the joy, and the disappointments, of fossil hunting. During the seven years Williston spent at Yale, where he took the M. D. and Ph. D. degrees, much time was spent in the employ of Professor Marsh. In this manner Williston was sent to work in the dinosaur quarry at Como Bluffs in 1877. One season he spent 10 months in the field. Mel"ely collecting dinosaur bones, without the added stimulus of scientific discussion, did not appeal to Williston, who turned his attention to medicine, becoming in time, professor of anatomy at Yale. At the University of Kansas, from 1890 to 1902, he made field trips to Wyoming, secured a skull of a three-horned dinosaur, limb bones, and backbones enough for exhibition and teaching. G. R. Wieland's work at Yale, beginning in 1898, has resulted in the publication of large quarto volumes on Cycads, and numbers of papers on dinosaurs and Cretaceous turtles. George BatH, a noted morphologist. worked in Paleontology at Yale, ultimately going to the University of Chicago as Professor of Vertebrate Paleontology, whose successor in 1902 was S. 'IV. Williston. The greatest collector of fossil \"ertebrates. who worked for Marsh at Yale University, was John Bell Hatcher. who died at the early age of 43. During the twenty years he spent collecting fossil vertebrates he shipped more than 1500 boxes of material to Yale, to the United States National Museum and to the Carnegie Museum. From 1884 to 1892 he shipped 900 boxes of fossil vertebrates to Yale Museum; one of them weighing more than three tons, having the dimensions of ten feet by five feet by six feet. This contained a very large skull of a three-horned dinosaur. He had found his first threehorned skull in 1889 near Lusk, Wyoming, and by 1892 he had collected SO ceratopsian dinosaurs, 33 of them "with skulls.
FIGURE 6.-FOUR DISTINGUISHED PALEONTOLOGISTS UPPER LEFT: Sir Richard Owen, a noted English anatomist and paleontologist, 1804 1892. A famous writer in many fields, his work on the dinosaurian reptiles is of the greatest value. He proposed the term Dinosauria. UPPER RIGHT: Professor Othniel Charles Marsh, an American paleontologist, 1831-1897. Professor of Paleontology at Yale University for many years, where in Peabody Museum are stored the vast collections of dinosaurs assembled frOln the Wyoming fossil beds, and e'}sewhere. under his supervision. LOWER LEFT: John Bell Hatcher, American Paleontologist, 1861-1904. He collected, during twenty years, more fossil vertebrates than any other single individual. Much of his work was in Wyoming, where among other materials he collected over SO three-horned dinosaurs, 33 of them with skulls. LOWER RIGHT: Professor Samuel Wondell Williston, American anatomist, paleontologist and dipterologist, 1852-1918. A famous collector and student of fossil vertebrates, he worked in Wyoming, during intervals, between ] 877 and 1910. Dinosaurs, plesiosaurs, and Triassic vertebrates from the Wyoming fossil fields were well known to him. His latter years were spent in the Permian Red Beds of Texas and New Mexico. from which he studied a large fauna. 37
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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
Page 53 and 54: CHAPTER XX Wyoming Dinosaurs Abroad
Page 58 and 59: CHAPTER XXII QLOSSARY Amphibious Di
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Page 67 and 68: CHAPTER XIV Footprints of Dinosaurs
Page 70: CHAPTER XV The Armoured Dinosauria
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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 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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