P534.53
Acknowledgments This study was supported by the State 973 Project (No. 2001CB209100). We are very grateful to Prof. Yang Xiangning for his careful guidance during this study.
ZHANG Zhili LIU Zhenwen WANG Baichang ZHANG Ying YE Dequan.2007. Ostracod Biostratigraphy of the Late Cretaceous Qingshankou Formation in the Songliao Basin[J]. ACTA GEOLOGICA SINICA(English edition),81(5):727~738
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