Hanawa, Yamamoto-gun: Middle Pleistocene, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Arcida - Limopsidae
Bivalvia - Arcida - Cucullaeidae
Arca boucardi Jousseaume 1894
Bivalvia - Carditida - Astartidae
Bivalvia - Carditida - Carditidae
Venericardia ferruginea (Clessin 1888)
Bivalvia - Cardiida - Cardiidae
Gastropoda - Turritellidae
Rhynchonellata - Rhynchonellida - Hemithirididae
Hemithyris psittacea (Gmelin 1790)
Rhynchonellata - Terebratulida - Cancellothyrididae
Terebratulina yabei Nomura and Hatai 1936
Terebratulina crossei Davidson 1882
Rhynchonellata - Terebratulida - Terebrataliidae
Terebratalia coreanica (Adams and Reeve 1850)
Terebratalia bialata Nomura and Hatai 1936
Terebratalia asanoi Nomura and Hatai 1936
Rhynchonellata - Terebratulida - Laqueidae
Laqueus rubellus (Sowerby 1846)
Laqueus japonicus Yabe and Hatai 1934
Laqueus hanawensis Hayasaka 1929
Rhynchonellata - Terebratulida - Dallinidae
see common names

Geography
Country:Japan
Coordinates: 40.3° North, 140.1° East (view map)
Paleocoordinates:
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Quaternary Epoch: Pleistocene
Stage: Chibanian 10 m.y. bin: Cenozoic 6
Key time interval: Middle Pleistocene
Age range of interval: 0.774 - 0.129 m.y. ago
Stratigraphy
Formation:Wakimoto
Stratigraphic resolution:group of beds
Stratigraphy comments: Fossils come from the upper part of the beds underlying the Sandy shale beds. The stratigraphy includes the "Gray shale beds" overlain by the "Alternation of sandstone and shale beds" and then the "Sandy shale beds." The "Alternation of sandstone and shale beds" likely corresponds to the Wakimoto beds as proposed by S. Toyama. Wakimoto Formation is Middle Pleistocene age (Ozawa & Kamiya, 2005).
Lithology and environment
Primary lithology:coarse poorly lithified sandstone
Lithology description: Gray to brownish colored compact, coarse grained sandstone or a fine grained conglomeratic sandstone bed
Environment:offshore
Geology comments: Water depths of "50-80 fathoms"
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Institute of Geology and Paleontology, Tohoku University, Sendai (IGPS)
Metadata
Database number:190675
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2017-12-13 23:31:17 Last modified:2025-02-22 15:12:02
Access level:the public Released:2017-12-13 23:31:17
Creative Commons license:CC0
Reference information

Primary reference:
64049. K. M. Hatai. 1940. The Cenozoic Brachiopoda of Japan. Science Reports, Tohoku Imperial University, Series 2 20:1-413 [M. Clapham/M. Clapham]