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Itoshiro Subgroup
- Type locality: Itoshiro, Shirotori village, Gujo city, Gifu prefecture
- Coherent formation
- Early Cretaceous
- Sedimentary facies: Terrestrial, Brackish
- Lithofacies (Basal): Conglomerate
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Shiromine, Ishikawa pref. - Takinami river, Katsuyama city, Fukui pref.
- Fossils: Xenoxylon latiporsum (Trunk)
- Fossils: Oguchi flora
- Fossils (Footprints, Theropods): Kuwajimasauropus shiraminensis, Asianopodus pulvinicalx
- Fossils (Footprints, Ornithopods): Shiraminesauropus reini, Gigantoshiraminesauropus matsuoi
- Sakai et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.3, pp.255-260 DOI
- Sakai et al. (2018) Jour. Geol. Soc. Japan, vol.124, no.3, pp.171-189 DOI
- Hirasawa et al. (2010) Jour. Geol. Soc. Japan, vol.116, Supplement, pp.103-121 DOI
- Nozawa et al. (1975) Geology of the Hida-Furukawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 79p. (in Japanese with English abstract 9p.)
- Kawai (1964) Neo, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 66p. (in Japanese with English abstract 12p.)
- Kawai et al. (1957) Arashimadake, Explanatory Text of the Geological Map of Japan, Scale 1:50,000, Geological Survey of Japan, 110p. (in Japanese with English abstract 13p.)