| details |
Valanginian |
Aptian |
Poland |
Mamczar,J. Megaspores. (In: Atlas of Guide and Characteristic Fossils. L.Malinawska, editor) |
1989 |
| details |
Rhaetian |
|
Greenland |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Late Cretaceous |
|
Sweden |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |
| details |
Late Coniacian |
Early Santonian |
Japan(Honshu I.) |
Takahashi,K. et al. Fossil Megaspores of Marsileales and Selaginellales from the Upper Coniacian to Lower Santonian (Upper Cretaceous) of the Tamagawa Formation (Kuji Group) in Northeastern Japan. |
2001 |