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Wakino Subgroup

• Type locality: Wakino, Miyata, Miyawaka city, Fukuoka prefecture
• Coherent formation
• Early Cretaceous

• Sedimentary facies: Lacustrine, Braided river
• Lithofacies: Shale, Sandstone

• Thickness: ca. 700 - 1,000 m
• Upper limit: Partly unconformity (Shimonoseki Subgroup)
• Lower limit: Unconformity (Kamikarako? Formation of Higuchi Group, Toyonishi Group)

• Distribution: Miyata, Miyawaka city - Ogura, Kitakyushu city, Fukuoka pref.; Ushirobata - Izumikawa, Yuya, Nagato city, Yamaguchi pref.

• Imaoka et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.7, pp.529-553 DOI
• Ota et al. (2011) Jour. Geol. Soc. Japan, vol.117, no.5, pp.289-298 DOI
• Kawamura (2010) Jour. Geol. Soc. Japan, vol.116, no.1, pp.27-44 DOI
• Yoshida et al. (2009) Jour. Geol. Soc. Japan, vol.115, no.12, pp.643-657 DOI
• Horiuchi and Hisada (2008) Jour. Geol. Soc. Japan, vol.114, no.9, pp.447-460 DOI