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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 | Middle Albian | Late Albian | Wyoming | Tingey,J.C. Palynology of the Lower Cretaceous Bear River Formation in the Overthrust Belt of southwestern Wyoming. | 1978 |
| details | Cenomanian | Coniacian | Wyoming | Griggs,P.H. Stratigraphy and palynology of the Frontier Formation, Big Horn Basin, Wyoming | 1970 |
| details | Callovian | Oxfordian | Wyoming | Griffith,C.E. Palynostratigraphy of the Sundance Formation (Jurassic), of the Black Hills area, South Dakota and Wyoming. | 1972 |