| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. North American species of the Cretaceous megaspores Balmeisporites and Monophyllosporites. |
1973 |
| details |
Maastrichtian |
|
North Dakota |
Bergad,R.D. Palynology of the Hell Creek Formation (Maastrichtian) in South-Central North Dakota. |
1974 |
| details |
Late Cretaceous |
|
China |
Anonymous On the discovery of Balmeisporites from Daging oil-Field and its significance. |
1976 |
| details |
Late Cretaceous |
|
China(Hopei) |
Anonymous Institiue of Scientific research and designing-Daqing oil Field. on the discovery of Balmeiporites from Daqing oil Field and its signifiance. |
1976 |
| details |
Nd |
|
Nd |
Srivastava,S.K. The Cretaceous megaspore genus Ghoshispora. |
1978 |
| details |
Middle Senonian |
|
China(Manchuria) |
Yu,J. et al. Cretaceous palynological assemblages from the District South of the Songhua River. |
1983 |
| details |
Nd |
|
Nd |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |