The Donglanggou Formation was established by Chen Kai and Xiong Yongxian, 1935, and is located NW of Dahuichang in the Western Hills of Beijing.

　
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  • 東狼溝組為陳愷、熊永先(1935)在北京西山大灰廠(chǎng)西北創(chuàng )立的地層單位。 當時(shí)描述不詳,未見(jiàn)化石。
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