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Tanoura Formation Ehiro and Bando, 1985

• Type locality: Tanoura, Ishihama, Utatsu, Minamisanriku city, Miyagi prefecture
• Coherent formation
• late Permian, Changhsingian

• Sedimentary facies: Marine
• Lithofacies: Silty slate, Slate
• Lithofacies (Minor): Sandstone, Gravel-bearing mudstone
• Lithofacies (Bottom): Interbedded calcareous sandstone and mudstone
• Sedimentary structures: Bioturbation

• Thickness: 640 m or thicker
• Upper limit: Unconformity
• Lower limit: Conformity

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

• Distribution: Tanoura, Ishihama - Nagasuka seashore, Utatsu, Minamisanriku city, Miyagi prefecture
• Fossils: Fusulinids (Palaeofusulina sp.), Foraminifera (Colaniella aff. inflata)
• Fossils (Shellfishes): Bellerophon (Bellerophon) yabei, Kitakamispira hanzawai, Nuculopsis mabutii

• Ehiro and Morikiyo (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.47-67 DOI
• Kamada (1993) Geology of the Tsuya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)