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Tokyo Formation Civil Engineering Laboratory of the Tokyo Metropolitan Government, 1996

• Type locality: underground of Yoyogi park, Shinjuku-ku, Tokyo Metropolis
• Coherent formation
• Pleistocene
• Correlation: upper Kioroshi Formation

• Sedimentary facies: Inner part of bay (The western side is inner.)
• Climate: Temperate coniferous forest (Pollen)
• Lithofacies: Muddy sands, Sandy mud
• Lithofacies (Lower): Sands and gravels
• Sedimentary structures: Bioturbation

• Thickness: ca. 0.7 - 2.5 m
• Upper limit: Unconformity (Musashino Terrace Deposit, Tokorozawa Formation, Kodaira Formation, Akabane Formation, Nakadai Formation)
• Lower limit: Unconformty (Kazusa Group, Setagaya Formation)

• Distribution: Setagaya, Tokyo
• Fossils: Shellfishes, Burrows, Plant roots
• Fossils (Diatoms): Cocconeis scutellum, Delphineis surirella, Grammatophora sp., Pseudopodosira kosugii, Tryblionella granulata, Giffenia cocconeiformis, Grammatophora sp.
• Fossils (Upper, Pollen): Cryptomeria sp., Alnus sp., Pinus sp., Quercus (Cyclobalanopsis) sp.
• Tephra: Hk-KIP7

• Nakazawa et al. (2019) Jour. Geol. Soc. Japan, vol.125, no.5, pp.367-385 DOI