| original |
Middle Eocene |
|
Utah |
Raatz,G.V Microbotanical stratigraphic investigation of the Browncoal of Muskauer Bogens |
1938 |
| details |
Nd |
|
Nd |
Potonie,R. Microbotany of Coal at the International botanical Congress in Stockholm, July 1950 |
1951 |
| details |
Tertiary |
|
Europe |
Brown,C.A. Comments on European Tertiary pollen studies. |
1957 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 3 |
1960 |
| details |
Campanian |
Maastrichtian |
Mexico(Coahuila) |
Martnez-HernЎndez,E. et al. Palynological study for the determination of the environment of the Fuentes-Rio Escondido Basin (Upper Cretaceous), Piedras Negras Region, Coahuila. |
1982 |
| details |
Middle Miocene |
|
China(Yunnan) |
Wang,W.-M. Paleofloristic and paleoclimatic implications of Neogene palynofloras in China |
1994 |