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From
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To
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Geolocation
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Author - title
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Year
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| details | Cenomanian | Coniacian | Wyoming | Griggs,P.H. Stratigraphy and palynology of the Frontier Formation, Big Horn Basin, Wyoming | 1970 |
| details | Senonian | Arabian Pen.States | Hemer,D.O. Diagnostic palynological fossils from Arabian formations. | 1968 | |
| original | Santonian | England(Isle of Wight) | Clarke,R.F.A. et al. An investigation of microplankton assemblages from the chalk of the Isle of Wight, England. | 1967 |