著者

田沢 純一

出版者

地学団体研究会

雑誌

地球科学 (ISSN:03666611)

巻号頁・発行日

vol.57, no.5, pp.315-318, 2003-11-25 (Released:2017-07-14)

被引用文献数

4

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Middle Permian brachiopod fauna of the South Kitakami Belt is characterized by the mixture of both the Boreal and Tethyan elements. In the Middle Permian, the area having the Boreal-Tethyan mixed brachiopod fauna is restricted in the northern to eastern outer margin of North China (Sino-Korea), i. e., the Inner Mongolian-Japanese Transitional Zone. The South Kitakami area was probably part of a continental shelf bordering the northern to eastern margin of North China. The geographical distributions of two Boreal elements, Yakovlevia mammata (Keyserling) and Spiriferella keilhavii (von Buch), and a Tethyan element Leptodus nobils (Waagen) are summarized and illustrated.