| original |
Recent |
|
Nd |
Srivastava,S.K. On the abnormality in some pollen grains of Pinus roxburghii Sarg., and its significance in the evolution of the saccate Pllen grains |
1960 |
| original |
Recent |
|
Nd |
Srivastava,S.K. On the abnormality in some pollen grains of Pinus roxburghii Sarg., and its significance in the evolution of the saccate Pllen grains |
1960 |
| original |
Recent |
|
Nd |
Srivastava,S.K. On the abnormality in some pollen grains of Pinus roxburghii Sarg., and its significance in the evolution of the saccate Pllen grains |
1960 |
| details |
Hettangian |
Early Toarcian |
Canada(Arctic) |
Suneby,L.B. et al. Palynological zonation of the Heiberg Formation (Triassic-Jurassic) eastern Sverdrup Basin, Arctic Canada. |
1988 |
| details |
Early Muschelkalk |
|
Germany(Hesse) |
Gжtz,A.E. et al. Palynofacies and sequence analysis of the Lower Muschelkalk (Middle Triassic, German basin). |
2000 |