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Hota Group Otsuka and Koike, 1949
- Accretionary complex
- Fore-arc basin sediments
- Deposition: late Oligocene - early Miocene (22.0 - 17.0 Ma)
- Correlation: Hayama Group
- Sedimentary facies: Marine, Accretionary complex-like
- Depth of water: Deeper than Carbonate Compensation Depth (CCD)
- Depth of water: Lower - Middle bathyal (Foraminifera)
- Lithofacies: Tuffaceous sandstone, Mudstone
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Hota, Kyonan city, Awa county, Chiba pref.; Tomiyama - Tomiura - Miyoshi - Maruyama - Wada, Minamiboso city, Chiba pref.; Emi - Amatsura, Kamogawa city, Chiba pref.; Niemon island, Kamogawa city, Chiba pref.
- Fossils (Shellfishes): Acila (Acila) praedivaricata, Acila (Acila) vigilia, Ancistrolepis bicordata, Ancistrolepis schencki, Neptunea cf. hobetsuensis, Periploma besshoensis, Polinices sp., Portlandia watasei, Solemya (Acarax) bosoana, Turritella sp.
- Yamamoto et al. (2016) Jour. Geol. Soc. Japan, vol.123, no.1, pp.41-55, DOI
- Takahashi et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.8, pp.375-395, DOI
- Kawakami and Shishikura (2006) Geology of the Tateyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 82p. (in Japanese with English abstract 5p.)
- Suzuki et al. (1990) Geology of the Nago District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 48p. (in Japanese with English abstract 3p.)