. Bulletin - American Museum of Natural History. Natural history; Science. 1895-1 Oshorn and Wortman, Perissodactyls of White River. 35 ' odontoid and a powerful spine. The cervicals 3-6 are charac- terized by a progressive increase in the height of the neural spine, in the size of the transverse process and extension and depression of its inferior lamella ; the post-zygapophyses are flat, similar in shape, \\x\(\ face downwards and outwards. The 7th cervical is. Fig. 3. Titanotkeriutn robustut one-thirtieth natural size. Mounted skeleton seen from behind. Approximately imperforate with a grea
. Bulletin - American Museum of Natural History. Natural history; Science. 1895-1 Oshorn and Wortman, Perissodactyls of White River. 35 ' odontoid and a powerful spine. The cervicals 3-6 are charac- terized by a progressive increase in the height of the neural spine, in the size of the transverse process and extension and depression of its inferior lamella ; the post-zygapophyses are flat, similar in shape, \\x\(\ face downwards and outwards. The 7th cervical is. Fig. 3. Titanotkeriutn robustut one-thirtieth natural size. Mounted skeleton seen from behind. Approximately imperforate with a greatly reduced transverse process. The dorsals are characterized by the sudden elevation, in d. 1-4, and gradual sinking of the spines as we pass backwards. Every dorsal from d. 1-17 is characterized by a facet for both the head and tubercle of the corresponding rib. The zygapophysial facets lie in a nearly horizontal plane from d. 1 to d. n ; they then gradually shift to an oblique plane from d. 1 2 to d. 14 ; and into a nearly- vertical plane in d. 15-16. The zygapophyses of the 1 7 th dorsal and 1st lumbar vertebrae are distinguished from all the others by being slightly concavo-convex. The post-zygapophysis of the 2d lumbar is plane and slightly oblique in position. The lumbar metapophy-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Museum of Natural History; Allen, J. A. (Joel Asaph), 1838-1921. New York [American Museum of Natural History]
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Keywords: ., bookcentury1800, booksubjectnaturalhistory, booksubjectscience
