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Kuri Formation Takenouchi et al., 1982
- Type locality: Ushibara river, Kawai village, Oda city, Shimane prefecture
- Coherent formation
- middle Miocene (15.5 - 14.8 Ma, K-Ar)
- Sedimentary facies: Marine
- Depth of water: Shallow - Bathypelagic
- Lithofacies: Mudstone
- Lithofacies (Minor): Basaltic andesite, Andesitic volcanic breccia, Rhyolitic tuff, Dacite - Rhyolite submarine pyroclastic flow deposit, Hyaloclastite
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: North of Oyama, Sada village, Izumo city, Shimane pref.
- Fossils (Foraminifera): Globigerina angustiumbilicata, Globigerina praebulloides, Globigerinita glutinata, Praeorbulina sicana
- Fossils (Calcareous nannofossils): Helicosphaera ampliaperta, Sphenolithus heteromorphus, Cyclicargolithus floridanus
- Kano (2018) Jour. Geol. Soc. Japan, vol.124, no.10, pp.781-803 DOI
- Sawada et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.267-284 DOI
- Hayashi et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.4, pp.300-311 DOI
- Sato et al. (2011) Jour. Geol. Soc. Japan, vol.117, no.8, pp.439-450 DOI
- Utada (2007) Jour. Geol. Soc. Japan, vol.113, no.8, pp.438-453 DOI