Otutumi, Kurokawa-gun (lower beds): Serravallian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Rhynchonellata - Terebratulida - Cancellothyrididae
Terebratulina japonica (Sowerby 1846)
Rhynchonellata - Terebratulida - Laqueidae
Laqueus rubellus (Sowerby 1846)
Rhynchonellata - Terebratulida - Terebrataliidae
Coptothyris grayi (Davidson 1852)
Terebratalia tenuis (Hayasaka 1922)
Rhynchonellata - Terebratulida - Terebratellidae
Tanakura tanakura Hatai 1936
Rhynchonellata - Terebratulida - Dallinidae
see common names

Geography
Country:Japan
Coordinates: 38.4° North, 140.9° East (view map)
Paleocoordinates:38.2° North, 138.4° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Neogene Epoch: Miocene
Stage: Serravallian 10 m.y. bin: Cenozoic 5
Key time interval: Serravallian
Age range of interval: 13.82 - 11.63 m.y. ago
Stratigraphy
Formation:Otsutsumi
Stratigraphic resolution:group of beds
Stratigraphy comments: Otsutsumi formation (Otutumi beds in Hatai) ranges from 14 Ma to 9 Ma (Ogasawara, 1994).
Lithology and environment
Primary lithology:coarse sandstone
Lithology description: Coarse-grained sandstone, conglomeratic sandstone with basal conglomerate calcareous
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:190762
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2017-12-17 20:39:19 Last modified:2025-02-22 15:12:02
Access level:the public Released:2017-12-17 20:39:19
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]