AR0021, Kami-uwabamidani Valley: Middle Oxfordian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Perisphinctidae
(1 measurement)
(3 measurements)
Cephalopoda - Ammonitida - Oppeliidae
Ochetoceras cf. irregulare Berckhemer and Hölder 1959
Cephalopoda - Phylloceratida - Phylloceratidae
(1 measurement)
see common names

Geography
Country:Japan
Coordinates: 36.5° North, 137.5° East (view map)
Paleocoordinates:54.6° North, 148.4° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Jurassic Epoch: Late Jurassic
Stage: Oxfordian 10 m.y. bin: Jurassic 5
Key time interval: Middle Oxfordian
Age range of interval: 159 - 157.9 m.y. ago
Stratigraphy
Formation:Arimine
Stratigraphic resolution:bed
Lithology and environment
Primary lithology: lithified siltstone
Environment:marine indet.
Taphonomy
Modes of preservation:mold/impression
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: National Museum of Nature and Science, Tokyo (NMNS)
Metadata
Database number:182856
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2016-11-27 15:45:55 Last modified:2025-02-22 15:12:02
Access level:the public Released:2016-11-27 15:45:55
Creative Commons license:CC0
Reference information

Primary reference:
61001. T. Sato and T. Yamada. 2014. A new Oxfordian (Late Jurassic) ammonite assemblage from the Arimine Formation (Tetori Group) in the Arimine area, southeastern Toyama Prefecture, northern Central Japan. Bulletin of the National Museum of Nature and Science, Series C, Geology and Paleontology 40:21-55 [M. Clapham/M. Clapham]