| original |
Cenomanian |
|
Minnesota |
Pierce,R.L. Lower Upper Cretaceous plant microfossils from Minnesota. |
1961 |
| original |
Maastrichtian |
|
Nigeria |
Hoeken-Klinkenberg,P.M.Van A palynological investigation of some Upper Cretaceous sediments in Nigeria. |
1964 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Nd |
|
Nd |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| details |
Nd |
|
Nd |
Srivastava,S.K. Microspores from the Fredericksburgh Group (Albian) of the southern United States. |
1975 |
| 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 |