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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 Permian | Oklahoma | Wilson,L.R. Plant microfossils of the Flowerpot Shale (Permian) of Oklahoma | 1959 | |
| details | Cenomanian | Coniacian | Wyoming | Upshaw,C.F. Palynology of the Frontier Formation, northwestern Wind River Basin, Wyoming. | 1959 |
| original | Cretaceous | USSR | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 | 1958 | |
| original | Middle Hauterivian | USSR(Kazakh SSR) | Bolkhovitina,N.A. Spore and pollen characteristics of Cretaceous layers in the Central Regions of the USSR. | 1953 |