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Osoushinai Formation

It had been included in Upper Yezo Group.

• Coherent formation
• Yezo forearc basin
• Late Cretaceous, Campanian

• Upper limit: Conformity
• Lower limit: Conformity

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Teshio-Nakagawa, Hokkaido

• Shimada et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.6, pp.432-436 DOI