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1 September 2009 Middle Permian Echinoconchoide Brachiopod Vediproductus in the Kamiyasse Area, Southern Kitakami Mountains, Northeast Japan
YUTA SHIINO
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Abstract

Three species of the Middle Permian echinoconchoide brachiopod Vediproductus from the Kamiyasse area, northeast Japan, V. mugenjin sp. nov., V. punctatiformis, and V. sp., are described, and their paleogeographic significance is discussed. V. mugenjin sp. nov. is characterized as having spine bands on both the outer and inner surface of the valve, showing a strong relief with a comparatively wide interval of each band and a typical sawtooth outline of spine bands in cross-sectional view. The stratigraphic and paleogeographic distributions suggest that the genus flourished in the Tethyan province and was possibly restricted to a lower latitude than warm-cool water transitional environment.

© by the Palaeontological Society of Japan
YUTA SHIINO "Middle Permian Echinoconchoide Brachiopod Vediproductus in the Kamiyasse Area, Southern Kitakami Mountains, Northeast Japan," Paleontological Research 13(3), 251-258, (1 September 2009). https://doi.org/10.2517/1342-8144-13.3.251
Received: 13 March 2009; Accepted: 1 May 2009; Published: 1 September 2009
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KEYWORDS
Articulata
Capitanian
concavo-convex
Guadalupian
Kitakami
Midian
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