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A new early permian fruit, Dengfengfructus maxima gen. et sp. nov., supports the pre-cretaceous origin of angiosperms. [PDF]
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Evaluation of potential helium source rocks and helium enrichment factors in coalbed methane in the eastern margin of Ordos basin. [PDF]
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Fusulinids from the Upper Permian Kuma Formation, Southern Kyushu, Japan : With Special Reference to the Fusulinid Zone in the Upper Permian of Japan [PDF]
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Characteristics and genesis of permian chert in the middle and upper Yangtze Region, China. [PDF]
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Two new Late Upper Permian Trilobites from Central Iran.
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Evolution of Insect Pollination Before Angiosperms and Lessons for Modern Ecosystems. [PDF]
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