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Upadhyay, R., Chandra, R., Rai, H., Jha, N., Chandra, S., Kar, R. and Sinha, A.K. 1999. First find of the Early Permian Lower Gondwana plant remains and palynomorphs from the Chhongtash Formation (Upper Shyok valley), eastern Karakoram, India. Journal of Palaeosciences. 48, (1-3) (Dec. 1999), 7–18. DOI:https://doi.org/10.54991/jop.1999.1286.