| details |
Cenomanian |
|
Kansas |
Kovach,W.L. et al. Megaspores and other dispersed plant remains from the Dakota Formation (Cenomanian) of Kansas, USA. |
1988 |
| details |
Cenomanian |
|
Kansas |
Kovach,W.L. Quantitative palaeoecology of megaspores and other dispersed plant remains from the Cenomanian of Kansas, USA. |
1988 |
| details |
Cenomanian |
|
Iowa |
Hall,J.W. Megaspores and other fossils in the Dakota Formation, (Cenomanian), of Iowa, USA. |
1963 |
| details |
Cenomanian |
|
Minnesota |
Hall,J.W. et al. Megaspore assemblages in the Cretaceous of Minnesota. |
1968 |
| details |
Cenomanian |
|
Iowa |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Cenomanian |
|
Iowa |
Srivastava,S.K. Upper Cretaceous palynology-A review |
1967 |
| details |
Barremian |
Aptian |
Virginia |
Hueber,F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. |
1982 |
| details |
Barremian |
Coniacian |
Worldwide |
Kovach,W.L. et al. Worldwide stratigraphic occurrences of Mesozoic and Tertiary megaspores. |
1989 |
| details |
Barremian |
Early Aptian |
England(Dorset) |
Ruffell,A.H. et al. Uppermost Wealden facies and Lower Greensand Group (Lower Cretaceous) in Dorset, Southern England; correlation and palaeoenvironment. |
1994 |
| details |
Barremian |
Aptian |
Virginia |
Hueber,F.M. Megaspores and a palynomorph from the Lower Potomac Group in Virginia. |
1982 |
| details |
Aptian |
Albian |
Canada(NWT) |
Sweet,A.R. Jurassic and Cretaceous megaspores. |
1979 |
| 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 |
Aptian |
Cenomanian |
Sudan |
Kaska,H.V. A spore and pollen zonation of Early Cretaceous to Tertiary nonmarine sediments of central Sudan. |
1989 |
| details |
Aptian |
|
Canada(Alberta) |
Singh,C. Microflora of the Lower Cretaceous Mannville Group, east-central Alberta. |
1964 |
| details |
Aptian |
Cenomanian |
Sudan |
Christopher,R.A. et al. Introduction to biostratigraphy and time scales. (Principles and Applications. Applications. J.Jansonius and D.C.McGregor, editors.) |
1996 |
| details |
Albian |
Cenomanian |
Colorado |
Ellis,C.H. et al. The Cretaceous megaspore genus Arcellites, Miner. |
1964 |