| original |
Bathonian |
|
England(Rutland) |
Murray,N. The microflora of the Upper and Lower Estuarine Series of the East Midlands. |
1939 |
| details |
Late Bajocian |
|
England(Yorkshire) |
Kendall,M.W. Jurassic Lycopod megaspores from the Gristhorpe plant bed. |
1942 |
| details |
Jurassic |
|
Nd |
Schopf,J.M. et al. An annotated synopsis of Paleozoic fossil spores and the definition of generic groups. |
1944 |
| details |
Jurassic |
|
England |
Just,T. Mesozoic plant microfossils and their geological significance. |
1951 |
| details |
Middle Jurassic |
|
England(Cambridgeshire) |
Gilbert,J.L. et al. The occurrence of determinable plants in the Lower Estuarines of Peterborough. |
1953 |
| details |
Bathonian |
|
England(Rutland) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Nd |
|
Nd |
Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. |
1964 |
| details |
Late Pliensbachian |
|
Poland |
Marcinkiewicz,T. The stratigraphy of the Rhaetian and Liasin Poland based on megaspore investigations |
1971 |
| details |
Middle Valanginian |
Hauterivian |
Poland |
Waksmundzka,M. Lower Cretaceous megaspores from northern Poland. |
1982 |
| details |
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 |
Nd |
|
Nd |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |