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Tokotan Formation Matsui et al., 1987

• Type locality: Tenneru, Kushiro city, Kushiro county, Hokkaido
• Coherent formation
• Pliocene (Shellfishes, Diatoms)

• Sedimentary facies: Marine
• Lithofacies: Silty sandstone

• Thickness: 3 m or thicker
• Upper limit: Unconformity (Kushiro Formation)
• Lower limit: Unconformity (Paleogene strata)

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

• Distribution: Tenneru, Kushiro city, Kushiro county, Hokkaido
• Fossils: Shellfishes, Diatoms

• Hasegawa et al. (2011) Jour. Geol. Soc. Japan, vol.117, no.12, pp.686-699 DOI