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Yamagata Muddy Sandstone Member

• Coherent formation
• Miocene

• Sedimentary facies: Marine
• Lithofacies: Muddy sandstone

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

• Distribution: Okayama pref.
• Fossils: Shellfishes, Pipe rocks

• Suzuki et al. (2009) Jour. Geol. Soc. Japan, vol.115, Supplement, pp.139-151 DOI