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Goshoura Group

• Coherent formation
• Cretaceous
• Upper: Unconformity (Hinoshima Formation)

• Distribution: Kumamoto pref.
• Fossils (Bivalves): Nanonavis pseudocarinata

• Kojo et al. (2011) Jour. Geol. Soc. Japan, vol.117, no.7, pp.398-416 DOI
• Terabe and Matsuoka (2009) Jour. Geol. Soc. Japan, vol.115, no.3, pp.130-140 DOI