| original |
Cenomanian |
|
Minnesota |
Pierce,R.L. Lower Upper Cretaceous plant microfossils from Minnesota. |
1961 |
| original |
Neocomian |
Albian |
Nd |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1962 |
| details |
Middle Devonian |
Early Carboniferous |
W.Germany(N.Rhine) |
Brelie,G.Von Der The Lower Cretaceous of northern Sauderland |
1964 |
| details |
Middle Jurassic |
Early Tertiary |
Eurasia |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Middle Jurassic |
Early Tertiary |
North America |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| details |
Middle Jurassic |
Early Tertiary |
Australia |
Bolkhovitina,N.A. The spores of the Family Gleicheniaceae ferns and their importance for the stratigraphy |
1968 |
| original |
Albian |
|
Canada(Alberta) |
Brideaux,W.W. Palynology of the Lower Colorado Group (Late Lower Cretaceous) and its lithological equivalents in central and west-central Alberta, Canada. |
1968 |