The American Journal of Science, Том 204J.D. & E.S. Dana, 1922 |
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Стр. 427
... davisi and Nimravus ( Archælurus ) debilis major in addition to those given in his original description of these two types . The illustrations accom- panying this article are by Mr. R. Weber , and have a value of their own quite apart ...
... davisi and Nimravus ( Archælurus ) debilis major in addition to those given in his original description of these two types . The illustrations accom- panying this article are by Mr. R. Weber , and have a value of their own quite apart ...
Стр. 429
... davisi has stated at considerable length the reasons for which it seemed to him " advisable to use the arrangement proposed by Cope , and to separate platy- copis , brachyops , and davisi [ from the deinictid group in the John Day beds ] ...
... davisi has stated at considerable length the reasons for which it seemed to him " advisable to use the arrangement proposed by Cope , and to separate platy- copis , brachyops , and davisi [ from the deinictid group in the John Day beds ] ...
Стр. 430
... davisi . P is without a positive inner cusp ( protocone ) , the inner root being small and closely adpressed to the anterior root . It has a small but definite anterior accessory cusp ( parastyle ) distinctly separated from the sharp ...
... davisi . P is without a positive inner cusp ( protocone ) , the inner root being small and closely adpressed to the anterior root . It has a small but definite anterior accessory cusp ( parastyle ) distinctly separated from the sharp ...
Стр. 431
... davisi , but not with P. platycopis , for according to Cope the upper sectorial of the latter species has no parastyle . The paracone and metacone of P are separated by a deep notch much as in Dinictis and Nimravus , and judging from ...
... davisi , but not with P. platycopis , for according to Cope the upper sectorial of the latter species has no parastyle . The paracone and metacone of P are separated by a deep notch much as in Dinictis and Nimravus , and judging from ...
Стр. 433
... davisi where the similar measurement is about 198 mm . Viewed from the side , the general proportions of the skull of P. serruli- dens resemble those of P. davisi more closely than they do those of Nimravus . This is especially ...
... davisi where the similar measurement is about 198 mm . Viewed from the side , the general proportions of the skull of P. serruli- dens resemble those of P. davisi more closely than they do those of Nimravus . This is especially ...
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ammonium chloride appears aragonite atoms bands barium basalt Bayer's beds biotite bowlders brachiopods calcite canine cent chemical chloride clays colloidal color composition compound cone cone-in-cone Cope crystalline crystals deposits described determined Devonian diameter Dinictis Eocene evidence fanglomerates fault plane fauna feet feldspar formation fossils gabbro genus Geological Glass gneiss granite graptolites Holotype Hyrachyus igneous indices John Day JOUR lake Laue photographs layer length leucite limestone liquid lower Marsh mass material measurements melting method miles minerals Miocene mixture molar Nimravus Nimravus debilis occur orthoclase oxide Payette platycopis Pogonodon Pogonodon davisi posterior premolars present probably quartz lode quartzite Reagan refraction region ridge rocks salt sandstone SCI.-FIFTH SERIES sediments serrulidens shales silicates skull solution space groups sparagmite species specimen stibnite strontium structure surface symmetry temperature thickness tion Triassic trilobites U. S. Geol upper zone