A middle Permian (Wordian) brachiopod fauna, consisting of 19 species in 18 genera, is described from the lower part of the Kamiyasse Formation in Matsukawa, South Kitakami Belt, northeastern Japan. The Matsukawa fauna is a mixed Boreal—Tethyan brachiopod fauna that shows strong affinities with the middle Permian (Wordian—Capitanian) brachiopod faunas of central Japan (Hida Gaien Belt), eastern Russia (South Primorye), northeastern China (Heilongjiang), northern China (Inner Mongolia) and northwestern China (Xinjiang). The palaeobiogeographical data suggest that Proto-Japan, including South Kitakami, was part of a continental shelf along the northern and eastern margins of North China, located in the mid-latitudes of the Northern Hemisphere during the middle Permian (Wordian).
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1 July 2017
Middle Permian (Wordian) Mixed Boreal—Tethyan Brachiopod Fauna from Matsukawa, South Kitakami Belt, Japan
Jun-Ichi Tazawa,
Hideo Araki
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Paleontological Research
Vol. 21 • No. 3
July 2017
Vol. 21 • No. 3
July 2017
Brachiopoda
Matsukawa
Middle Permian
mixed Boreal—Tethyan fauna
South Kitakami Belt