| details |
Late Pliensbachian |
Bajocian |
Poland |
Marcinkiewicz,T. The stratigraphy of the Rhaetian and Liasin Poland based on megaspore investigations |
1971 |
| details |
Middle Albian |
|
Canada(Alberta) |
Singh,C. Lower Cretaceous microfloras of the Peace River area, Northwestern Alberta. |
1971 |
| details |
Pliensbachian |
Toarcian |
Poland |
Marcinkiewicz,T. Importance of megaspores in stratigraphy of Epicontinental Rhaetic and Liassic deposits in Poland. |
1971 |
| details |
Late Liassic |
Dogger |
Denmark |
Gry,H. Megaspores from the Jurassic of the Island of Bornholm, Denmark. |
1969 |
| details |
Aptian |
|
Canada(Alberta) |
Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. |
1964 |
| details |
Late Liassic |
|
Poland |
Marcinkiewicz,T. Megaspore analysis of Jurassic sediments near Gorzow Slaski-Praszka, (Cracow-Wielun Region). |
1960 |
| details |
Bathonian |
|
England(Rutland) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |