( Invalid ) Funakawa Group Fujioka, 1959
Corresponds to Onnagawa Formation, Funakawa Formation, Kitaura Formation, and Wakimoto Formation.
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown