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Shiotezawa Formation Inoue, 1960
- Type locality: Shiotezawa, Hachiwari, Kakunodate town, Senboku city, Akita prefecture
- Coherent formation
- middle Miocene (16.0 Ma, U-Pb; 14.5 Ma, FT)
- Correlation: Kitanomatasawa Formation
- Sedimentary facies: Marine
- Lithofacies: Sandstone, Coaly mudstone
- Lithofacies (Minor): Coquina (Shell-bearing rock), Conglomerate
- Sedimentary structures (Sandstone): Parallel stratification, Trough cross-stratification, Climbing ripples
- Sedimentary structures (Conglomerate): Cross stratification, Imbricate structure
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Shiotezawa, Hachiwari, Kakunodate town, Senboku city, Akita pref.; Hosogoe, Inazawa, Kyowa, Daisen city, Akita pref.
- Fossils: Trace fossils, Plants roots
- Fossils (Bivalves): Mizuhopecten kimurai?, Mizuhopecten paraplebejus, Placopecten protomollitus, Chlamys cf. kaneharai, Aequipecten vesiculosus
- Fossils (Brachiopods): Terebratalia akitana, Terebratalia tohokuensis, Coptothyris grayi
- Fossils (Pollen): Quercus sp., Fagus sp., Pinus sp.
- Hosoi et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.4, pp.279-295 DOI