| details |
Nd |
|
Nd |
Collinson,M.E. Diversification of modern Heterosporous Pteridophytes. (In: Pollen and Spores, Patterns of Diversification. S.Blackmore and S.H.Barnes, editors) |
1991 |
| details |
Middle Albian |
Early Cenomanian |
Colorado |
Pannella,G. Palynology of the Dakota Group and Graneros Shale of the Denver Basin. |
1966 |
| details |
Late Aptian |
Early Albian |
Argentina(Santa Cruz) |
Baldoni,A.M. et al. Megaspores from the Lower Cretaceous Kachaike Formation, Santa Cruz Province, Argentina. |
1991 |
| details |
Late Albian |
|
Canada(Alberta) |
Singh,C. Lower Cretaceous microfloras of the Peace River area, Northwestern Alberta. |
1971 |
| details |
Cenomanian |
|
Iowa |
Srivastava,S.K. Upper Cretaceous palynology-A review |
1967 |
| details |
Middle Albian |
Late Albian |
Canada(Manitoba) |
Playford,G. Palynology of the Basal Cretaceous (Swan River) strata of Saskatchewan and Manitoba |
1971 |
| details |
Middle Albian |
Late Albian |
Canada(Saskatchewan) |
Playford,G. Palynology of the Basal Cretaceous (Swan River) strata of Saskatchewan and Manitoba |
1971 |
| details |
Cenomanian |
|
Iowa |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Early Cretaceous |
|
Greenland |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Early Cretaceous |
|
Canada(Alberta) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 4. Supplement to all Groups, (Turmae). |
1966 |
| details |
Late Cretaceous |
|
Nd |
Tschudy,R.H. The plant kingdom and its palynological representation. (In: Aspects of Palynology. R.H. Tschudy and R.A. Scott, editors) |
1969 |
| details |
Middle Albian |
Early Cenomanian |
Nebraska |
Pannella,G. Palynology of the Dakota Group and Graneros Shale of the Denver Basin. |
1966 |
| details |
Early Albian |
|
Canada(Ontario) |
Hopkins,W.S. et al. Miospores and megaspores from the Lower Cretaceous Mattagami Formation of Ontario. |
1976 |
| details |
Maastrichtian |
|
Canada(Yukon) |
Sweet,A.R. Palynology of the lower part, type section, Tent Island Formation, Yukon Territory. |
1978 |
| details |
Late Cretaceous |
|
Iowa |
Potter,D.E. An emendation of the sporomorph Arcellites Miner,1935 |
1963 |
| details |
Late Cretaceous |
|
Greenland |
Batten,D.J. et al. Re-examination of seed cuticles from Cretaceous deposits in western Greenland. |
1996 |
| 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 |