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Sikonai Siltstone Member (Otuka, 1934) Matsubara, 1995

Invalid synonym: Sikonai Alternation Beds, Kagitori Sandstone

Invalid synonym (Upper): Kadonosawa Tuffaceous Sandstone Member, Kagitori Sandstone and Siltstone Member

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