| original |
Early Miocene |
|
Bangladesh |
Mannan,A Stratigraphic evolution and geochemistry of the Neogene Surma Group, Surma Basin, Sylhet, Bangladesh. |
2002 |
| original |
Early Miocene |
Middle Miocene |
California |
Barnett,J. Palynology and paleoecology of the Tertiary Weaverville Formation, Northwestern California, USA. |
1989 |
| original |
Early Westphalian |
Permian |
India(West Bengal) |
Ghosh,R.K. Correlation of Poniati, Koithee and Rana Seams around Barboni, Raniganj Coalfield, District Burdwan, West Bengal, based on palynological evidence. |
1964 |
| original |
Jurassic |
|
India(Bihar) |
Vishnu-Mittre Petrified spores and pollen grains from the Jurassic rocks of Rajmahal Hills, Bihar. |
1954 |