Late Permian palynomorphs from the West Bokaro Coalfield, Damodar Basin, Jharkhand, India
Keywords:Late Permian, Palynofossils, Palaeoenvironment, West Bokaro Coalfield
Palynological studies were carried out for samples collected from the Bokaro River section near Danea area from West Bokaro Coalfield, Damodar Basin. The recovered palynomorphs are characterized by the dominance of monosaccate pollen mainly Densipollenites (D. magnicorpus, D. invisus, D. indicus and D. densus) and subdominance of Faunipollenites spp.–Striatopodocarpites spp. complex. The other stratigraphically significant taxa recorded from this section are Guttulapollenites hannonicus, Crescentipollenites fuscus, Arcuatipollenites (A. pellucidus, A. ovatus and A. damudicus), Alisporites asansolensis, Verticipollenites gibbosus, Striatites rhombicus, Platysaccus densicorpus, Chordasporites sp., Parasaccites (P. perfectus and P. densicorpus) and Horriditriletes sp. On the basis of the total palynocomposition, the studied section has been dated as late Permian in age. This age correlation also gets support from comparative studies with similar palynoassemblages known from other coalfields of Indian Gondwana basins such as Damodar, Satpura, Son–Mahanadi, Rajmahal and Wardha–Godavari basins. The dominance of Cordaites and subdominance of conifers of Glossopterids suggests that the deposition of the sedimentary sequences took under freshwater environment.
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