Bulletin of the United States Geological and Geographical Survey of the Territories, Volume 6U.S. Government Printing Office, 1882 - Geological surveys |
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Page 79
... anterior parts of the jaws . Mandible supporting several rows of teeth , which oppose a pavement of obtuse teeth on the palate . These are situated on either the palatine or anterior part of the pterygoid bones . Quadratojugal and malar ...
... anterior parts of the jaws . Mandible supporting several rows of teeth , which oppose a pavement of obtuse teeth on the palate . These are situated on either the palatine or anterior part of the pterygoid bones . Quadratojugal and malar ...
Page 80
... anterior to the line of the anterior border of the orbit . Of these the next to the anterior one is larger than the rest , though of the same shortly - conic , obtuse form . These teeth are rather large for the size of the skull . At a ...
... anterior to the line of the anterior border of the orbit . Of these the next to the anterior one is larger than the rest , though of the same shortly - conic , obtuse form . These teeth are rather large for the size of the skull . At a ...
Page 82
... anterior extremity of the epicoracoid lies on the superior ( internal ) face of the horizontal portion of the clavicle , extending nearly to its anterior border . Its ex- ternal margin thins out in contact with the clavicle . The above ...
... anterior extremity of the epicoracoid lies on the superior ( internal ) face of the horizontal portion of the clavicle , extending nearly to its anterior border . Its ex- ternal margin thins out in contact with the clavicle . The above ...
Page 84
... anterior plates of the ilia are broken away , but enough remains of their inner portion to show their anterior extent . The postacetabular ridges diverge outwards and terminate in a prominent angulation of the posterior border which is ...
... anterior plates of the ilia are broken away , but enough remains of their inner portion to show their anterior extent . The postacetabular ridges diverge outwards and terminate in a prominent angulation of the posterior border which is ...
Page 88
... anterior to the condyle , separated from it by a depression which seems to indicate the remains of the occipito- basi - sphenoidal suture . Posterior to the foramen magnum the bone rises and displays a well - marked " cerebellar ...
... anterior to the condyle , separated from it by a depression which seems to indicate the remains of the occipito- basi - sphenoidal suture . Posterior to the foramen magnum the bone rises and displays a well - marked " cerebellar ...
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Common terms and phrases
abundant American angle anteriorly articulation Atlantic flora Balana Baleine base bird bone border Bosgoed Bull Cachalot California canine Catodon Centrocercus Cetacea Cétacés characters Colorado Colorado Valley concave condyle convex Cope coracoid crest cusp Dauphin Delphinus Depth of ramus Diameters distal dorsal Dugong Eastern elevated external extremity Felida figg foramen foramina fore wings Fort Mojave fossil fuscous genera genus gibbar groove Grote Guen Hind wings Humboldt Mountains humerus Hyperoodon incisor inferior molar inner Lamantin latter Length Linn macrocephalus Manati mandible median middle Miocene Mojave molar Monodon Morr mysticetus nearly Nevada North northern Orca peculiar Philos Physeter Plate portion posterior posteriorly premolar Pyramid Lake region ridge Ridgway River Rocky Mountains sectorial seen shaft shales side Sirenia skull southern species specimens spine superior surface teeth tibia tibiæ Trans transverse true molar tubercle vertebra Whale Width
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Page 75 - ... synchronous. The beds in the lower latitudes must be later, and were forming when Greenland probably had very nearly the climate which it has now. Wherefore the high, and not the low, latitudes must be assumed as the birth-place of our present flora;* and the present arctic vegetation is best regarded as a derivative of the temperate. This flora, which when circumpolar was as nearly homogeneous round the high latitudes as the arctic vegetation is now, when slowly translated into lower latitudes,...
Page 69 - Nor in any of the genera common to the two does the Pacific forest equal the Atlantic in species. It has not half as many Maples, nor Ashes, nor Poplars, nor Walnuts, nor Birches, and those it has are of smaller size and...
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Page 76 - To what extent displaced, and how far superseded by the vegetation which in our day borders the ice, or by ice itself, it is difficult to form more than general conjectures, so different and conflicting are the views of geologists upon the Glacial period. But upon any, or almost any. of these views it is safe to conclude that temperate vegetation, such as preceded the refrigeration, and has now again succeeded it, was either thrust out of northern Europe and the northern Atlantic States or was reduced...