| details |
Wealden |
|
England(Isle of Wight) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 1 |
1956 |
| details |
Barremian |
Aptian |
Virginia |
Hueber,F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. |
1982 |
| details |
Barremian |
Aptian |
Virginia |
Hueber,F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. |
1982 |
| details |
Late Paleocene |
|
England(Kent) |
Collinson,M.E. et al. Palaeozoic, Mesozoic and contemporaneous megaspores from the Tertiary of Southern England: Indicators of sedimentary provenace and ancient vegetation. |
1985 |
| details |
Barremian |
Aptian |
China(Inner Mongolia) |
Li,W. et al. Early Cretaceous megaspores from the Jalainor Group of northeast Inner Mongolia, P.R.China. |
1987 |
| details |
Late Cretaceous |
|
Sweden |
Koppelhus,E.B. et al. Late Cretaceous megaspores from Southern Sweden; morphology and paleoenvironmental Signigicance |
1989 |
| details |
Barremian |
Early Campanian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Barremian |
|
England |
Batten,D.J. et al. Catalog of Mesozoic and Tertiary megaspores |
1990 |
| details |
Mesozoic |
|
Nd |
Kovach,W.L. A review of Mesozoic megaspore-ultrastructure. (In: Ultrastructure of Fossil Spores and Pollen. M.H.Kurmann and J.A.Doyle, editors) |
1994 |
| details |
Late Cretaceous |
|
Sweden |
Kedves,M. Tranmission Electron Microscopy of the Fossil Spores. |
1996 |