| details |
Early Albian |
Middle Albian |
USSR |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1963 |
| details |
Berriasian |
Early Hauterivian |
Egypt |
Ibrahim,M.I.A. et al. Palynological studies on the Late Jurassic-Early Cretaceous of Kahraman-1 Well, northern Western Desert, Egypt |
1996 |
| details |
Late Albian |
Early Cenomanian |
Spain |
Mas,J.R. The Lower Cretaceous of Northwestern Valencia |
1981 |
| details |
Middle Albian |
Early Cenomanian |
Colorado |
Pannella,G. Palynology of the Dakota Group and Graneros Shale of the Denver Basin. |
1966 |
| details |
Middle Albian |
Early Cenomanian |
Nebraska |
Pannella,G. Palynology of the Dakota Group and Graneros Shale of the Denver Basin. |
1966 |
| details |
Barremian |
Early Albian |
USA(Atlantic Coast.Pl.) |
Scott,R.A. et al. Palynomorph biostratigraphy. |
1977 |
| details |
Barremian |
Aptian |
Maryland |
Skog,J.E. Pelletixia amelguita, a new species of fossil fern in the Potomac Group (Lower Cretaceous). |
1982 |
| details |
Barremian |
Aptian |
Maryland |
Skog,J.E. Pelletixia amelguita, a new species of fossil fern in the Potomac Group (Lower Cretaceous). |
1982 |
| details |
Barremian |
Aptian |
Virginia |
Skog,J.E. The Lower Cretaceous ferns in the genus Anemia (Schizaeaceae), Potomac Group of Virginia, and relationships within the genus |
1992 |
| details |
Valanginian |
Aptian |
Israel |
Brenner,G.J. et al. Palynology and the age of the Lower Cretaceous Basal Kurnub Group from the Coastal Plain to the northern Kegev of Israel |
1992 |
| details |
Aptian |
Albian |
W.Germany(N.Rhine) |
Clausen,C.D. et al. Paleogeography, tectonics and karstic morphology of south and east Warstein Carbonate Platform; Warstein Anticline, Rhenish Schieferbebirge. (In: Anticlinal Arches of Krefeld and Lippstadt, Major Transverse Structures along the Ruhr Coal Basin) |
1982 |
| details |
Aptian |
Albian |
South Dakota |
Cahoon,E.J. Lower Cretaceous pollen and spores from the Southern Black Hills |
1965 |
| original |
Neocomian |
Albian |
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1962 |
| details |
Cretaceous |
|
Brazil(Pernambuco) |
de Lima,M.R. Paleontology of the Santana Formation, (Cretaceous of Northeast Brazil). |
1979 |
| details |
Maastrichtian |
|
Texas |
Kumar,A. Palynostratigraphy and palaeoecology of the Navarro Group, (Maestrichtian), of Texas, USA. |
1979 |
| details |
Middle Albian |
|
Portugal |
M©dus,J. Palynofloristic correlations of two Albian sections of Portugal |
1982 |
| details |
Berriasian |
|
Canada(Alberta) |
Ricketts,B.D. et al. Stratigraphy, sedimentology and palynology of the Kootenay-Blairmore transition in southwestern Alberta and southeastern British Columbia. |
1986 |