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Sugaruya Member Okumura et al, 1977

Invalid synonym: Kamimiyata Member

• Type locality: Sugaruya, Yokosuka city, Kanagawa prefecture
• Coherent formation
• late Pleistocene

• Depth of water: Tidal, Upper sublittoral
• Lithofacies: Sands
• Lithofacies (Minor): Gravels

• Thickness: 90 m

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

• Distribution: Sugaruya, Yokosuka city, Kanagawa pref.
• Fossils (Shellfishes): Acmaea pallida, Adamnestia japonica, Anomia cytaeum, Arca boucardi, Barbatia stearnsii, Cardita nodulosa, Cardilia semisulcata, Cardita toneana, Caryocorbula venusta, Clinocardium californiense, Crassostrea gigas, Cryptonatica janthostomoides, Dentalium septentrionale, Fulvia mutica, Glossaulax didyma, Glossaulax reinlana, Glycymeris vestita, Glycymeris pilsbryi, Glycymeris yessoensis, Gomphina neastartoides, Hastulopsis melanacme, Heteromacoma irus, Lachryma callosa, Limatula japonica, Limopsis crenata, Limopsis tokaiensis, Macoma incongrua, Macoma tokyoensis, Mactra sulcataria, Meretrix larnarcki, Mersca subtruncata, Mitrella bicincta, Patinopecten tokyoensis, Pecten albicans, Raeta pulchella, Ranella galea, Reticunassa spurca, Ringicula driaris, Ruditapes philippinarum, Ruditapes variegatus kioroshiensis, Semeangulus miyatensis, Septifer keeni, Serpulorbis medusae, Solen gordonis, Spisula sachalinensis, Striarca tenebrica, Suchium costatum, Sunetta concinna, Tonna luteostoma, Turritella nipponica miyata, Venericardia ferruginosa

• Eto et al. (1998) Geology of the Yokosuka District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 128p. (in Japanese with English abstract 3p.)