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Shimajiri Group Kata, 1885

• Type locality: Southwestern Okinawa island, Okinawa prefecture
• Coherent formation
• Pliocene - early Pleistocene, late Gelasian

• Sedimentary facies: Marine
• Depth of water: Upper continental slope (250 m or deeper)
• Lithofacies (Main): Siltstone, Sandstone
• Lithofacies (Minor): Tuff

• Thickness: ca. 2,600 m
• Upper limit: Partly conformity, partly unconformity (Chinen Formation)

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

• Distribution: Kikai island, Southwestern Okinawa island, Kume island, Miyako island
• Distribution: Makabe - Ozato - Toyohara, Itoman city, Okinawa pref.; Senagusuku - Kochinda - Tomoyose, Yaese city, Shimajiri county, Okinawa pref.
• Fossils: Bivalves, Gastropods

• Nanjo et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.3, pp.155-170 DOI
• Sagae et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.2, pp.117-136 DOI
• Chiyonobu et al., (2009) Jour. Geol. Soc. Japan, vol.115, no.10, pp.528-539 DOI