Locality 1, Urakawa: Late Campanian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Cidaroida - Cidaridae
"Cidaris" sp. Leske 1778
Bivalvia - Myalinida - Inoceramidae
Cephalopoda - Ammonitida - Baculitidae
Baculites subanceps Haughton 1925
Cephalopoda - Ammonitida - Tetragonitidae
(1 measurement)
Cephalopoda - Ammonitida - Desmoceratidae
Cephalopoda - Ammonitida - Pachydiscidae
Menuites sp. Spath 1922
see common names

Geography
Country:Japan
Coordinates: 42.2° North, 142.8° East (view map)
Paleocoordinates:50.5° North, 132.7° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Late Campanian Ammonoid zone:  Baculites subanceps
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Formation:Chinomigawa
Stratigraphic resolution:bed
Stratigraphy comments: Unit U6
Lithology and environment
Primary lithology: lithified muddy sandstone
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, Tsukuba (NMNS), and Hobetsu Museum, Mukawa (HMG)
Metadata
Database number:181919
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2016-10-08 10:07:06 Last modified:2025-02-22 15:12:02
Access level:the public Released:2016-10-08 10:07:06
Creative Commons license:CC0
Reference information

Primary reference:
60510. Y. Shigeta, M. Izukura, T. Nishimura and Y. Tsutsumi. 2016. Middle and late Campanian (Late Cretaceous) ammonoids from the Urakawa area, Hokkaido, northern Japan. Paleontological Research 20:322-366 [M. Clapham/M. Clapham]