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Author - title
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| details | Late Proterozoic | India(Uttar Pradesh) | Nautiyal,A.C. Upper Proterozoic microfossils (Zone IV, V) and biostratigraphic significance of Upper Semri and Lower Kaimur Groups of Central India. | 1994 | |
| details | Late Proterozoic | India(Madhya Pradesh) | Nautiyal,A.C. Upper Proterozoic microfossils (Zone IV, V) and biostratigraphic significance of Upper Semri and Lower Kaimur Groups of Central India. | 1994 |