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Nishikurosawa fauna

• Strata: Nishikurosawa Formation, Aosawa Formation
• Miocene

• [ Index fossils ]
• Foraminifera

• Ikebe et al. (1979) Geology of the Sakata District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 42p. (in Japanese with English abstract 3p.)