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We report well-preserved coprolites in the ground tissue of the permineralized stem of Psaronius housuoensis D'Rozario et al., from the Upper Permian deposits of Yunnan Province, southwest China. The distinctive coprolites are circular to oval in shape, ranging on average from 944×1190μm to 1065×1120μm, and contain histologically identifiable tracheids, parenchyma, gum sac cells, spores and fungal...
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