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Influence of Late Cretaceous Climate Change to Extinction of Dinosaurs in Jiayin Area of Heilongjiang, Analyzed by Spore and Pollen
ZHAO Hai-bin，YIN Zhi-gang，WAN Xiao-qiao，YU Qing-wen，NIU Yan-hong
Geoscience . 2006, (2): 216 -224 . 

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