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. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Douglass : Vertkurates from Montana Tertiary. 177 not be too positive about there being prelachrynial vacuities, but if not, there were certainly prelachrynial pits. On one side there is a large circular space anterior to the orbits which has no bone and the surrounding bone, in part, appears to be unbroken. The skull is a little longer than that of Mesoreodon chelonyx Scott. The nasals are lost. The malomaxillary ridge is high, very convex, extends upward as well as forward, dying out near t

. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Douglass : Vertkurates from Montana Tertiary. 177 not be too positive about there being prelachrynial vacuities, but if not, there were certainly prelachrynial pits. On one side there is a large circular space anterior to the orbits which has no bone and the surrounding bone, in part, appears to be unbroken. The skull is a little longer than that of Mesoreodon chelonyx Scott. The nasals are lost. The malomaxillary ridge is high, very convex, extends upward as well as forward, dying out near t Stock Photo
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Library Book Collection / Alamy Stock Photo

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RMP1K0

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7.1 MB (328.6 KB Compressed download)

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2563 x 975 px | 21.7 x 8.3 cm | 8.5 x 3.3 inches | 300dpi

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. Annals of the Carnegie Museum. Carnegie Museum; Carnegie Museum of Natural History; Natural history. Douglass : Vertkurates from Montana Tertiary. 177 not be too positive about there being prelachrynial vacuities, but if not, there were certainly prelachrynial pits. On one side there is a large circular space anterior to the orbits which has no bone and the surrounding bone, in part, appears to be unbroken. The skull is a little longer than that of Mesoreodon chelonyx Scott. The nasals are lost. The malomaxillary ridge is high, very convex, extends upward as well as forward, dying out near the upper border. Fig. i8. Poairephespahidicolaijso. Z^). Flint Creek beds. One half natural size. Right view of skull, part of teeth restored from other side. of the maxillary just in front of the lachrymal depression or vacuity. The anterior borders of the premaxillaries are thick and they do not rise so abruptly as in Mesoreodon or Eporeodon. The prelachrymal vacuities appear to have been (juite large. The sagittal crest was high as shown by impression on surrounding matrix. The anterior portion of the zygomatic arch beneath the orbits is broad, heavy, and widely spreading, the outer portion curving downward, with the border roughened and very concave antero-posteriorly. The anterior lower root is low, being only a little above the alveolar border. The orbit is closed behind by a heavy bridge of bone. The anterior tongue of the squamosal is long and slender, terminating beneath the posterior portion of the orbit. This process and the posterior process of the jugal overlap for a considerable distance. From opposite the glenoid surface the zygomatic arch ascends slightly to where it is broken off opposite the glenoid process. The anterior portion of the arch is broad and thick. It spreads far outward from the molars. The pos-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance o

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