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Yao, P.-Y., Liu, X. & Fu, D.-R. (1990). New observation on the Jurassic-Cretaceous boundary section at Gucuo, Nyalam, Xizang. , . Bulletin of the Chinese Academy of Geological Sciences. 21: 41-54.
Yao, P.-Y., Liu, X. & Fu, D.-R. (1990). New observation on the Jurassic-Cretaceous boundary section at Gucuo, Nyalam, Xizang. , . Bulletin of the Chinese Academy of Geological Sciences. 21: 41-54.
