Locality 2, Nameshi-zawa Valley, south of Asadanuki: Spathian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ceratitida - Danubitidae
Eodanubites aff. xinyuanensis Wang 1978
see common names

Geography
Country:Japan
Coordinates: 38.7° North, 141.3° East (view map)
Paleocoordinates:38.4° North, 118.6° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Triassic Epoch: Early Triassic
Stage: Olenekian 10 m.y. bin: Triassic 1
Key time interval: Spathian
Age range of interval: 248.9 - 247.2 m.y. ago
Stratigraphy
Formation:Osawa
Stratigraphic resolution:group of beds
Stratigraphy comments: Loc. 2 is located about 60 m south of Locs. 1a and 1b and its stratigraphic position is considered to be about the same as or slightly above (1 to 2 meters) locs. 1b and 1c. Ammonoid horizons of Loc. 1a to 1c are stratigraphically situated 20 to 30 meters below the boundary between the Osawa and Fukkoshi formations.
Lithology and environment
Primary lithology: lithified mudstone
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Tohoku University Museum (IGPS)
Metadata
Database number:224868
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2022-04-08 00:33:22 Last modified:2022-04-08 00:33:22
Access level:the public Released:2022-04-08 00:33:22
Creative Commons license:CC BY
Reference information

Primary reference:
81251. M. Ehiro. 2022. Latest Olenekian (Early Triassic) ammonoids from the uppermost part of the Osawa Formation (Inai Group) in the South Kitakami Belt, northeast Japan. Paleontological Research 26:137-157 [M. Clapham/M. Clapham]