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details | Nd | Nd | Srivastava,S.K. Cretaceous spore-pollen floras | 1978 | |
details | Coniacian | Early Maastrichtian | Niger | Petrosyants,M.A. et al. Spore pollen characteristics of Upper Cretaceous deposits of the Mali-Niger Syncline, (South Sahara). | 1971 |