| original |
Middle Albian |
|
Oklahoma |
Srivastava,S.K. Microspores from the Fredericksburgh Group (Albian) of the southern United States. |
1975 |
| details |
Middle Albian |
|
Texas |
Srivastava,S.K. Stratigraphic ranges of selected spores and pollen from the Fredericksburg Group, (Albian), of the southern United States. |
1981 |
| details |
Middle Albian |
|
Oklahoma |
Srivastava,S.K. Stratigraphic ranges of selected spores and pollen from the Fredericksburg Group, (Albian), of the southern United States. |
1981 |
| details |
Middle Albian |
|
Portugal |
M©dus,J. Palynofloristic correlations of two Albian sections of Portugal |
1982 |
| details |
Valanginian |
|
China(Liaoning) |
Yu,J. et al. Sporo-pollen assemblages from the upper part of the Rehe Group, Liaoning Province |
1986 |