| details |
Early Keuper |
Middle Keuper |
England |
Townrow,J.A. On some disaccate pollen grains of Permian to Middle Jurassic age. |
1962 |
| details |
Gipskeuper |
|
Switzerland |
Scheuring,B.W. Palynology and palynostratigraphic study of the Keuper in Bolchentunnel, (Solothurn Jura). |
1970 |
| details |
Early Keuper |
|
England(Worcestershire) |
Grauvogel-Stamm,L. Revision of male cones of the "Lower Keuper" of Worcestershire, (England), attributed to Masculostrobus willsi, Townow. Comparison with the species in the area of the Upper Buntandstein of Vosges, (France). |
1972 |
| details |
Triassic |
|
France |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |