| original |
Aptian |
|
W.Germany(Saarland) |
Schultz,G. et al. The megaspores associated with the Lower Cretaceous sediments filling the Paleokarst near Nehden in Saarland, (Rhenish Massif) Supplement to previously known association |
1987 |
| details |
Aptian |
|
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Aptian |
|
Germany |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Early Aptian |
|
W.Germany(Niedersachsen) |
Batten,D.J. Megaspores from Lowermost Aptian Beds in northern Germany. (In: The Barremian-Aptian Boundary. A Study of profiles from the boreal Cretaceous.E.Kemper, editor) |
1995 |