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Godo Formation (Fukuda and Ishiwada, 1964) Majima, 1989

Synonym: Godo Sandstone Conglomerate Member (Tokigawa Formation), Kamagata Formation, Godo Sandstone and Conglomerate Member (Iwadono Formation, Tokigawa Group)

• Type locality: Right shore of Toki river, Ranzan city, Saitama prefecture
• Coherent formation
• middle Miocene

• Sedimentary facies: Marine, Continental shelf of good water passage
• Lithofacies: Conglomerate, Medium to coarse-grained sandstone
• Sedimentary structures: Planar cross-stratification

• Thickness: 150 m or thicker
• Upper limit: Conformity (Negishi Formation)
• Upper limit: Lithofacies boundary (around 15.0 Ma)
• Lower limit: Unconformity (Ichinokawa Formation)
• Lower limit: Niwaya Unconformity (15.4 - 15.1 Ma)

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

• Distribution: Kumai - Takemoto, Hatoyama city, Saitama pref.; Kamagata - Senjudo - Sugaya - Okura - Hinohara, Ranzan city, Saitama pref.; Godo - Kuzubukuro, Higashimatsuyama city, Saitama pref.; Rokujizo, Ogose city, Saitama pref.
• Fossils: Bivalves, Gastropods, Scaphopods, Nanaochlamys notoensis notoensis (Yokoyama), Calcareous algae, Sharks (Teeth), Desmostylia (Teeth), Pinnipedia (Teeth), Diatoms, Calcareous nannofossils

• Takahashi and Yanagisawa (2004) Jour. Geol. Soc. Japan, vol.122, no.12, pp.625-635.
• Kurihara et al. (2003) Jour. Geol. Soc. Japan, vol.109, no.4, pp.215-233.
• Koike et al. (1985) Jour. Geol. Soc. Japan, vol.91, no.10, pp.665-677.