| original |
Neocomian |
Albian |
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1962 |
| details |
Middle Turonian |
Early Santonian |
Utah |
Orlansky,R. Palynology of the Upper Cretaceous Straight Cliffs Sandstone, Garfield County, Utah. |
1967 |
| details |
Middle Berriasian |
|
Maryland |
Doyle,J.A. Palynological evidence for Berriasian age of Basal Potomac Group sediments, Crisfield Well, Eastern Maryland. |
1983 |
| details |
Middle Albian |
|
Virginia |
Reinhardt,J. et al. Lower Cretaceous stratigraphy of the core. |
1980 |
| details |
Late Turonian |
Coniacian |
Utah |
Orlansky,R. Palynology of the Upper Cretaceous Straight Cliffs Sandstone, Garfield County, Utah. |
1971 |
| details |
Late Berriasian |
Middle Albian |
Atlantic Ocean |
Habib,D. Comparison of Lower and Middle Cretaceous palynostratigraphic zonations in the Western North Atlantic. (In: Stratigraphic Micropaleontology of Atlantic Basin and Borderlands. F.M.Swain, editor) |
1977 |
| 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 |
Early Valanginian |
Early Albian |
Atlantic Ocean |
Habib,D. Palynostratigraphy of the Lower Cretaceous section at Deep Sea Drilling Project Site 391, Blake-Bahama Basin, and its correlation in the North Atlantic. |
1978 |
| details |
Early Liassic |
|
Jordan |
Basha,S.H. On the occurrence of the Liassic Stage in Jordan |
1995 |
| original |
Early Cretaceous |
|
Maryland |
Brenner,G.J. The spores and pollen of the Potomac Group of Maryland |
1963 |
| details |
Early Cretaceous |
|
Oklahoma |
Wingate,F.H. Palynology of the Denton Shale (Lower Cretaceous), of southeastern Oklahoma. |
1974 |
| details |
Early Cretaceous |
|
Maryland |
Miao,S. et al. Spores and pollen. Mesozoic spores and pollen. (In: Paleontological Atlas of North China.III.Micropaleontological Volume.) |
1984 |
| details |
Early Cretaceous |
|
China(N.China) |
Miao,S. et al. Spores and pollen. Mesozoic spores and pollen. (In: Paleontological Atlas of North China.III.Micropaleontological Volume.) |
1984 |
| details |
Cretaceous |
|
Brazil(Pernambuco) |
de Lima,M.R. Paleontology of the Santana Formation, (Cretaceous of Northeast Brazil). |
1979 |
| details |
Barremian |
Albian |
Virginia |
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 |
Barremian |
Early Aptian |
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 |
Barremian |
Early Aptian |
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 |