| details |
Wealden |
|
England(Hampshire) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Campanian |
Maastrichtian |
Canada(Alberta) |
Gunther,P.R. et al. Megaspores and other palynomorphs of the Brazeau Formation (Upper Cretaceous) Nordegg area, Alberta, Canada. |
1972 |
| details |
Early Turonian |
|
France(Dordogne) |
Colin,J.P. Plant microfossils in Cenomanian and Turonian deposits from Dordogne (southwest France) |
1973 |
| details |
Late Turonian |
|
France(Dordogne) |
Colin,J.P. Some Cenomanian and Upper Turonian megaspores from Sarladias (Dordogne, southwest France). |
1975 |
| details |
Aptian |
Albian |
Canada(NWT) |
Sweet,A.R. Jurassic and Cretaceous megaspores. |
1979 |
| details |
Barremian |
Campanian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Barremian |
Aptian |
England |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Wealden |
|
England |
Batten,D.J. et al. Morphological reassessment of some zonate coronate megaspore genera of mainly post-Palaeozoic age. |
1993 |