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Otsu Member Kanie et al., 1977
Invalid synonym: Horinouchi Member
- Coherent formation
- late Pleistocene
- Sedimentary facies: Marine
- Sedimentary facies: Continental slope facing open sea
- Lithofacies: Sands, Gravels
- Sedimentary structures: Cross-stratification, Imbrication
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Yokosuka - Otsu - Kamoi - Hashirimizu, Yokosuka city, Kanagawa pref.
- Fossils: Palaeostegodon naumanni, Sinomegaceros yabei, Cervus praenipponicus
- Fossils (Shellfishes): Acila divaricata, Adomnesia japonica, Aequipecten vesiculosus, Afrocardium edaranum, Angulus venusta, Anisocorbula venusta, Anomia cylaeum, Antalis weinkauffi, Arca boucardi miyatensis, Arca uwaensis, Barispira hinomotoensis, Barbalia bicolorata, Batillaria zonalis, Callistoma consors, Calyptraea yokoyamai, Cardita leana, Chama fragum, Charonia sauliae, Chlamys farreri, Cingulina cinglata, Cirratiscala undulatissima, Claraxis asperus, Clinocardium californiense, Crassatella oblongata, Crassostrea nipponica, Crepidula vispinosa, Cryptonatica adamsiana, Cryptonatica janthostomoides, Cucullaea labiosa granulosa, Cytharopsis sp., Dentalium octangulatum, Elaeocymo braunsi, Enida japonica, Erronea gracilis japonica, Eunaticina papilla, Euspira pallida, Fulvia mutica, Fusinus perplexus, Glossaulax didyma, Glossaulax hosoyai, Glycymeris vestita, Gomphina undulosa, Homalopoma amussitatum, Inquisitor jeffreysii, Iphinoe unicarinata, Kuroshioturris albogemmata, Leiocithara longispira, Lemelliscala replicata, Leucotina gigantea, Limatula kurodai, Limopsis crenata, Lucinoma concentricum, Macoma praetexta, Merica asperus, Merisca margaritita, Mitrella tenuis, Modiolus nipponicus, Myadora fluctuosa, Mylilus difficilis, Nemocardium sagarangea, Nettastomella japonica, Nipponolimopsis decussata, Notirus ishibashianus, Nuculana yokoyamai, Ocenebra aduncum, Ocenebra burnetti, Ocenebra japonica, Olivella sp., Paphia undulata, Pecten albicans, Pinna bicolor, Pitar subfreum, Placamen tiana, Polynemomussium intuscostatum, Primouia rhodia, Proterato callosa, Protothaca euglypta, Protothaca jedoensis, Psephea sp., Pseudogrammatodon dalli, Reticunassa fretercula, Reticunassa japonica, Reticunassa multigranosa, Ringicula doliaris, Saccella sematensis, Saxidomus purpuratue, Siphonaria spadicea, Solen gordonis, Solen strictus, Strioterebrum subtextile, Suavodrilia declivis, Suchium costatum, Sydaphera spengleriana, Syrnola brunnea, Tegula rustica, Thericium kobelti, Tonna luteostoma, Turcica coreensis, Turritella nipponica, Venericardia ferruginea, Viriola tricincta, Volutharpa perryi, Zeuxis castus
- 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.)