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Terada Formation (Fujimoto et al., 1961) Takano, 1994
- Sedimentary facies: Marine, Brackish
- Sedimentary facies: A cycle of regression and transgression
- Lithofacies (Upper): Interbedded sands and gravels
- Lithofacies (Middle): Silt, Sands
- Lithofacies (Lower): Gravels
- Lithofacies (Lower, Minor): Sands
- Sedimentary structures (Upper): Parallel stratification, Trough cross-stratification
- Sedimentary structures (Middle): Pipe rocks
- Thickness: 50 m
- Thickness (Upper): 4 m or thicker
- Thickness (Lower): 3 m or thicker
- Upper limit: Conformity (Oyabe Formation), Unconformity (Terrace deposit)
- Lower limit: Unconformity (Tate Formation, Kobotoke Group)
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Terada town - Kobiki town, Hachioji city, Tokyo; Aihara town, Machida city, Tokyo
- Fossils: Elephants (Stegodon protoaurorae)
- Fossils (Middle): Shellfishes (Brackish, Shallow marine), Diatoms (Brackish)
- Fossils (Middle, Pollen): Liquidambar sp., Metasequoia sp.
- Suzuki et al. (2016) Jour. Geol. Soc. Japan, vol.122, no.7, pp.343-356, DOI
- Ueki et al. (2013) Geology of the Hachioji District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 137p. (in Japanese with English abstract 6p.)
- Suzuki and Murata (2011) Jour. Geol. Soc. Japan, vol.117, no.7, pp.379-397 DOI