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Yoro Formation
- Coherent formation
- Miocene
- Sedimentary facies: Marine
- Sedimentary facies: Offshore (Outer shelf)
- Lithofacies: Mustone, Mudstone-dominant interbedded sandstone and mudstone
- Sedimentary structures (Sandstone): Parallel stratification, Current ripples, Wave-formed ripples
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Matsuzaki seashore, Tosashimizu city, Kochi pref.
- Fossils (Trace fossils): Phycosiphon incertum (Small worms), Thalassinoides isp. (Callianassa sp.)
- Nara et al. (2017) Jour. Geol. Soc. Japan, vol.123, no.7, pp.471-489 DOI