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Fukkoshi Formation Ichikawa, 1947
Invalid synonym: Konori Formation
- Type locality: Fukkoshi seashore, Motoyoshi village, Kesennuma city, Miyagi prefecture
- Coherent formation
- Middle Triassic, Anisian (Ammonoids)
- Contemporaneous heterotopic facies (Partly): Isatomae Formation, Osawa Formation
- Intruded by: Harioka Mass
- Sedimentary facies: Marine
- Sedimentary facies: Submarine fan on the continental shelf
- Lithofacies: Calcareous sandstone, Interbedded sandstone and mudstone
- Lithofacies (Minor): Mudstone, Gravel-bearing sandstone
- Sedimentary structures: Convolute lamination, Pillow structure, Slump structure, Dish structure
- Paleocurrent: from West-northwest
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Fukkoshi seashore - Mount Tatsugane - Goonozawa - Oden - Omochizawa - Sobodo - Mount Takakane, Motoyoshi village, Kesennuma city, Miyagi pref.; Mount Tokusenjo, Kesennuma city, Iwate pref.; Kamihazawa - Shimohazawa, Toyoma town, Tome city, Miyagi pref.; Tajiribatake - Sakanokai pass - Kurauchi - Suganohama - Iriobunezawa - Mount Horowa - Okubo, Minamisanriku town, Motoyoshi county, Miyagi pref.; Nijuichihama, Utatsu, Minamisanriku city, Motoyoshi county, Miyagi pref.; Oyashiki - Mount Tenjin - Minamizawa - Ikai, Tsuyama town, Tome city, Miyagi pref.; Mount Kyozan - Iino river, Mono town, Ishinomaki city, Miyagi pref.; Saragai - Harioka - Shinohata, Ishinomaki city, Miyagi pref.; Ozashi, Kitakami town, Ishinomaki city, Miyagi pref.; Terahama, Shizukawa, Minamisanriku city, Motoyoshi county, Miyagi pref.; Osu - Tachihama - Namiita - Mount Kenjo - Ogachi pass, Ogachi town, Ishinomaki city, Miyagi pref.; Sashigahama - Onmaehama - Kirigasaki - Konori - Mount Takasaki - Takashiro - Mount Kuromori - Anju, Onagawa city, Oshika county, Miyagi pref.; Izushima island - Enoshima island, Onagawa city, Oshima county, Miyagi pref.
- Fossils: Bivalves (Leptochondria? sp., Palaeoneilo? sp., Pteria sp.), Crinoids (Isocrinus sp.), Sponges (Chaetetes sp.), Plants
- Fossils (Ammonoids): Balatonites cf. kitakamicus, Hollandites sp., Gymnites sp., Rikuzenites nobilis
- Fossils (Brachiopods): Isocrinus sp., Pteria spp., Spiriferina cf. fragiris, Spiriferina cf. stracheyi, Terebratura sp.
- Fossils (Trace fossils): Chondrites isp., Neonereites isp., Phycosiphon isp., Scalarituba isp.
- Ehiro and Morikiyo (2013) Jour. Geol. Soc. Japan, vol.119, Supplement, pp.47-67 DOI
- Takeuchi and Mikoshiba (2002) Geology of the Senmaya District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 76p. (in Japanese with English abstract 3p.)
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