| original |
Late Albian |
|
Utah |
Tschudy,R.H. et al. Palynological evaluation of Cedar Mountain and Burro Canyon Formations, Colorado Plateau. |
1984 |
| original |
Late Triassic |
|
Utah |
Arnold,C.A. Fossil ferns of the Matoniaceae from North America. |
1956 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Middle Eocene |
|
Utah |
Bradley,W.H. Origin and microfossils of the oil shales of the Green River Formation of Colorado and Utah. |
1931 |
| details |
Early Tertiary |
|
USSR(Yamalo-Nenets) |
Bakulenko,A.S. Palynological results in Tertiary deposits, exploratory Well #1 in the Region of Novyjport. (In: Paleontology and Biostratigraphy of the Soviet Arctic. #2. N.A.Shvedov, editor) |
1961 |
| original |
Albian |
|
USSR(Yakut ASSR) |
Kirichkova,A.I. et al. New Cretaceous Filicales from northern Siberian |
1965 |
| original |
Albian |
|
USSR(Yakut ASSR) |
Kirichkova,A.I. et al. New Cretaceous Filicales from northern Siberian |
1965 |
| details |
Early Triassic |
|
USSR(Yakut ASSR) |
Krassilov,V.A. et al. Pleuromeia from the Lower Triassic of the Olenek River. |
1975 |