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Higashiinnai Formation (Nagahama, 1951) Yoshikawa et al., 2002
Invalid synonym: Higashiinnai Member, Fujio Member
- Type locality: Higashiinnai town, Wajima city, Ishikawa prefecture
- Type locality (Black mudstone): Ourade, Suzu city, Ishikawa prefecture
- Coherent formation
- early - middle Miocene (16.5 - 15.3 Ma; 15.8 Ma, FT)
- Sedimentary facies: Inner bay
- Sedimentary facies: Brackish - Marine
- Sedimentary facies: Mangrove marsh, Shallow marine
- Sedimentary facies: Incised valley-fill deposit
- Climate: Evergreen broad-leaved forest and Deciduous broad-leaved forest dominant
- Lithofacies (Northeast): Sandstone, Mudstone
- Lithofacies (Southwest): Conglomerate
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Higashiinnai town, Wajima city, Ishikawa pref.; Ourade, Suzu city, Ishikawa pref.
- Fossils: Crabs, Sponges, Mangroves (Pollen), Dinoflagellata
- Fossils (corresponds to Kurosedani fauna): Anadara (Hataiarca) kurosedaniensis, Caryocorbula peregrina, Cerithidea spp., Conus tokunagai, Cyclocardia cf. siogamaensis, Placopecten? protomollitus, Turbo ozawai, Vasticardium ogurai, Vicaryella ishiana
- Fossils (Foraminifera): Operculina ammonoides, Operculina complanata
- Kano (2018) Jour. Geol. Soc. Japan, vol.124, no.10, pp.781-803 DOI
- Yamanoi et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.5, pp.262-266 DOI
- Yoshikawa et al. (2002) Geology of the Suzumisaki, Noto-iida and Horyuzan District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 76p. (in Japanese with English abstract 4p.)