Katsuhira Mudstone Member
Invalid synonym: Katsuhira Formation
Katsuhira Formation of Mitani et al. (1959) was separated to Kawakami Formation and Upper Mudstone Member of Kawaruppu Formation.
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown