Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 69American Philosophical Society, 1930 |
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Результати 1-3 із 49
Сторінка 130
... genus and species . Princeton No. 13242. Left lower jaw , crown view , X 4.2 . FIG . 2. - Internal view of the same , X 4.4 . FIG . 3. - External view of the same , X 4.1 . PLATE II FIG . 1. - Parectypodus tardus . Holotype , new ...
... genus and species . Princeton No. 13242. Left lower jaw , crown view , X 4.2 . FIG . 2. - Internal view of the same , X 4.4 . FIG . 3. - External view of the same , X 4.1 . PLATE II FIG . 1. - Parectypodus tardus . Holotype , new ...
Сторінка 323
... genus is exclusively of the Old World . So far as one may argue from these broad facts , the Piperaceae may be considered as of American origin , since they are at once more numerous in species and more segregated into major types in ...
... genus is exclusively of the Old World . So far as one may argue from these broad facts , the Piperaceae may be considered as of American origin , since they are at once more numerous in species and more segregated into major types in ...
Сторінка 494
... genus were discovered re- peatedly above the lowest occurrences of Eohippus . If the " Princeton Quarry " level genus Phenacodaptes , herein described , proves to belong to the Artiodactyla , then the appearance of this order antedates ...
... genus were discovered re- peatedly above the lowest occurrences of Eohippus . If the " Princeton Quarry " level genus Phenacodaptes , herein described , proves to belong to the Artiodactyla , then the appearance of this order antedates ...
Зміст
Why the 200Inch Teleschope By ELIHU THOMSON | 13 |
Antarctica BY ISAIAH BOWMAN | 19 |
Studies on Weathering and Soil Formation in Tropical High | 45 |
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acid American Antarctic atoms Banahao basin Bearpaw beds Bighorn Bighorn Basin cell CERATOPSIA chemical climate colloid color Constitution Cretaceous crown view cusp deposits diameter dinosaurian dinosaurs dissymmetrical Ectypodus electrons Eocene fact fauna formation fossils Fox Hills genera genus Glacier County Glozel Gray Bull growth Holotype horizon humus incisor increase international law ions iron Java Kritosaurus Lance Lance formation land layer lower jaw luciferase luciferin M₁ material metaconid molar Mousterian organic matter Ornithomimus Ottonia oxide P₁ Paleocene Peperomia Piper Piperaceae plants Plate podsolization posterior precipitation present Princeton Probathyopsis Professor protoconid protoplasm reaction region ridge sandstone season Sebilian shale silica Society soil solution South species specimens stars STEGOSAURIA surface symmetrised temperature theory tion Titanoides tooth toxic equivalent Triceratops trigonid tropical trunk University upper weathering Wyoming