中國北部太原系之瓣腮類化石
By: Zhao Yazeng zhuan
Series: Zhongguo gu sheng wu zhi. Yi zhong -- di 9 hao : di 3 ce; Zhongguo gu sheng wu zhi -- di 9 hao : di 3 ce
Publisher: Zhongguo di zhi diao cha suo
Published: 1927
Place of publication: China
Language: chi
Other titles: Zhongguo bei bu tai yuan xi zhi ban sai lei hua shi