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From
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Geolocation
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Author - title
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Year
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| details | Early Gondwana | India(Bihar) | Mukherjee,B. et al. Studies on petrography and miofloristics of Coals of Karharbari and Barakar Stages from parts of North Karanpura Coalfield, Bihar. | 1974 | |
| details | Carboniferous | France(Jura) | Navale,G.K.B. Coal- A palyno-petrographic approach. | 1963 | |
| details | Artinskian | Australia(Queensland) | Foster,C.B. Permian plant plant microfossils from the Blair Athol Coal Measures, Central Queensland, Australia. | 1975 |