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Yezo Group (Matsumoto, 1951) Takashima et al., 2004

Invalid synonym: Yezo Supergroup

Yezo Group had been divided into Upper Yezo Group, Middle Yezo Group and Lower Yezo Group.

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