| details |
Barremian |
|
USSR(Turkmen SSR) |
Vinogradova,K.V. et al. Sporo-pollen complexes of Lower Chalky deposits of South Western Turkmenia and the South Karakum, their importance for separation and correlation of sections |
1985 |
| details |
Danian |
|
USSR(WSL) |
Kiselman,E.N. et al. Danian Stage. (In: Stratigraphy of the Mesozoic and Cenozoic of the Western Siberian Lowlands. V.F.Kozyreva, editor) |
1957 |
| details |
Late Cretaceous |
Paleocene |
South Dakota |
Rich,F.J. et al. Paleoecology and sedimentology of the Fort Union Formation, Harding County, South Dakota. |
1982 |
| details |
Early Cretaceous |
|
USSR(Siberia) |
Bolkhovitina,N.A. History of the Schizaceaeceae Family in the geological past on the basis of spore studies. |
1962 |