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Yatsuo Group (Makiyama, 1930) Nakajima et al., 2019

• Type locality: Toyama prefecture?
• Coherent formation
• Miocene

• Upper limit: Unconformity (Tonami Group)
• Lower limit: Unconformity (Nirehara Formation, Tetori Group)

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

• Distribution: Nirehara - Imozu - Iwaine, Osawano town, Toyama city, Toyama pref.; Jinzu river daisan dam, Yatsuo town, Toyama city, Toyama pref.

• Nakajima et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.7, pp.483-516 DOI
• Kunugiza et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.83-101 DOI