| original |
Late Cretaceous |
|
Colorado |
Newman,K.R. Palynologic correlations of Late Cretaceous and Paleocene Formations, Northwestern Colorado. (In: Palynology in Oil Exploration, Aureal T. Cross, editor) |
1964 |
| original |
Late Pliocene |
|
Czechoslovakia |
Stuchlik,L. Plant Miocrofossils of the Vidstejn Formation (Cheb Basin) |
1982 |
| original |
Late Campanian |
|
Colorado |
Manfrino,C. Stratigraphy and palynology of the Upper Lewis Shale, Pictured Cliffs Sandstone, and Lower Fruitland Formation (Upper Cretaceous) near Durango, Colorado. |
1984 |