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Toyora Group (Yabe, 1920) Kobayashi, 1926

• Type locality: Toyota village, Shimonoseki city, Yamaguchi prefecture
• Coherent formation
• Early Jurassic, Sinemurian - Middle Jurassic, Callovian? (Ammonoids)

• Sedimentary facies: Marine

• Upper limit: Unconformity (Kanmon Group, Toyonishi Group)
• Lower limit: Unconformity (Sangun Metamorphic Rocks, Toyohigashi Group)

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

• Distribution: Tabe basin, Yamaguchi pref.
• Distribution: Toyota town, Shimonoseki city, Yamaguchi pref.
• Fossils: Ammonoids, Inoceramus, Belemnoids

• Maeda and Oyama (2019) Jour. Geol. Soc. Japan, vol.125, no.8, pp.585-594 DOI
• Kawamura (2010) Jour. Geol. Soc. Japan, vol.116, no.1, pp.27-44 DOI