Spore type D2
- Citations total:
- 2
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| original | Early Gondwana | India(West Bengal) | Ghosh,A.K. et al. A study of the microfossils and the correlation of some productive Coal Seams of the Raniganj Coalfield, Bengal, India. | 1948 | |
| original | Early Chesterian | Middle Chesterian | Oklahoma | Harris,R.W. Palynology of the Sand Branch Member of the Caney Shale Formation, (Mississippian), of Southern Oklahoma. | 1971 |