| original |
Neocomian |
Albian |
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1962 |
| original |
Early Cretaceous |
|
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1963 |
| details |
Late Barremian |
Late Albian |
England |
Kemp,E.M. Aptian and Albian miospores from Southern England. |
1970 |
| details |
Early Cretaceous |
|
Maryland |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 5. Supplement to all Groups (Turmae). |
1970 |
| details |
Middle Cenomanian |
|
France |
Az©ma,C. et al. Some miospores from the Middle Cenomanian. |
1972 |
| details |
Early Cretaceous |
|
Oklahoma |
Wingate,F.H. Palynology of the Denton Shale (Lower Cretaceous), of southeastern Oklahoma. |
1974 |
| details |
Middle Albian |
|
Maryland |
Robbins,E.I. et al. Palynological and stratigraphic investigations of four deep wells in the Salisbury Embayment of the Atlantic Coastal Plain. |
1975 |
| details |
Barremian |
Aptian |
Canada(Eastern Offshore) |
Williams,G.L. Dinoflagellate and spore stratigraphy of the Mesozoic-Genozoic, offshore eastern Canada |
1975 |
| details |
Early Cretaceous |
|
USA(Atlantic Coast.Pl.) |
Doyle,J.A. et al. Pollen and leaves from the Mid-Cretaceous Potomoc Group and their bearing on early angiosperm evolution. (In: Origin and Early Evolution of Angiosperms.C.B.Beck, editor) |
1976 |
| details |
Aptian |
Albian |
Maryland |
Srivastava,S.K. Cretaceous spore-pollen floras |
1978 |
| details |
Aptian |
Early Cenomanian |
Maryland |
Doyle,J.A. Palynostratigraphic zonation. (In: New data bearing on the structural significance of the Upper Chesapeake Bay magnetic anomaly. J.Edwards and H.J. Hansen) |
1979 |
| details |
Middle Albian |
Late Albian |
Virginia |
Reinhardt,J. et al. Lower Cretaceous stratigraphy of the core. |
1980 |
| details |
Late Albian |
|
Oklahoma |
Wingate,F.H. Plant microfossils from the Denton Shale Member of the Bokchito Formation, (Lower Cretaceous, Albian) in Southern Oklahoma. |
1980 |
| details |
Barremian |
Albian |
Maryland |
Upchurch,G.R. et al. Paleoecology of the Conifers Frenlopsis and Pseudofrenelopsis (Cheirolepidiaceae) from the Cretaceous Potomac Group of Maryland and Virginia. (In: Geobotany II -Edited by R.C.Romans) |
1981 |
| details |
Early Aptian |
Middle Aptian |
Maryland |
Doyle,J.A. Revised palynological correlations of the Lower Potomac Group (USA) and the Cocobeach sequence of Gabon (Barremian-Aptian) |
1992 |
| details |
Barremian |
Aptian |
Virginia |
Pedersen,K.R. et al. Pollen organ and seeds with Decussosporites, Brenner from Lower Cretaceous Potomac Group sediments of eastern USA |
1993 |
| details |
Early Cretaceous |
|
USA |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |