Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 69American Philosophical Society, 1930 |
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Сторінка 143
... fauna , and on the basis of the strati- graphic position between the Claggett and Bearpaw forma- tions , the Judith River formation is of Senonian age , and may be correlated with the upper Santonian or the lower Cam- panian . The ...
... fauna , and on the basis of the strati- graphic position between the Claggett and Bearpaw forma- tions , the Judith River formation is of Senonian age , and may be correlated with the upper Santonian or the lower Cam- panian . The ...
Сторінка 145
... fauna . The writer prefers to include the Tullock and Cannonball formations provisionally in the Paleocene , regarding most of the marine invertebrates of the Cannonball as survivors of the Pierre fauna in an almost landlocked sea ...
... fauna . The writer prefers to include the Tullock and Cannonball formations provisionally in the Paleocene , regarding most of the marine invertebrates of the Cannonball as survivors of the Pierre fauna in an almost landlocked sea ...
Сторінка 475
... fauna including Chriacus , Tricentes , and Tetraclanodon , all from the same limited sandstone lens . Plate I , Fig . 1 . Seventy - five feet below this Torrejon level is the top of the massive sandstone ( 130 feet thick ) , which the ...
... fauna including Chriacus , Tricentes , and Tetraclanodon , all from the same limited sandstone lens . Plate I , Fig . 1 . Seventy - five feet below this Torrejon level is the top of the massive sandstone ( 130 feet thick ) , which the ...
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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