| details |
Mesozoic |
|
Nd |
Kovach,W.L. A review of Mesozoic megaspore-ultrastructure. (In: Ultrastructure of Fossil Spores and Pollen. M.H.Kurmann and J.A.Doyle, editors) |
1994 |
| details |
Late Santonian |
Early Campanian |
Sweden |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| original |
Late Cretaceous |
|
Sweden |
Koppelhus,E.B. et al. Late Cretaceous megaspores from Southern Sweden; morphology and paleoenvironmental Signigicance |
1989 |
| details |
Late Santonian |
Early Campanian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |