KF88, Shigejisawa Valley, Kamiyasse Area: Wordian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata - Productida
Tazawa 2017
Strophomenata - Productida - Rugosochonetidae
(2 measurements)
see common names

Geography
Country:Japan
Coordinates: 39.0° North, 141.5° East (view map)
Paleocoordinates:7.0° North, 137.6° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Permian Epoch: Guadalupian
Stage: Wordian 10 m.y. bin: Permian 3
Key time interval: Wordian
Age range of interval: 266.9 - 264.28 m.y. ago
Stratigraphy
Formation:Kamiyasse
Stratigraphic resolution:bed
Stratigraphy comments: Formerly Kanokura Formation, now in lower part of Kamiyasse Formation
Lithology and environment
Primary lithology: lithified sandstone
Secondary lithology: lithified argillaceous,sandy "limestone"
Lithology description: Sandstone and impure argillaceous-arenaceous limestone
Environment:coastal indet.
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:100321
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2010-12-08 03:22:35 Last modified:2025-02-22 15:12:02
Access level:the public Released:2010-12-08 03:22:35
Creative Commons license:CC0
Reference information

Primary reference:
33423. G. A. Afanasjeva and J. Tazawa. 2007. A new large chonetid (Brachiopoda) from the Middle Permian of the southern Kitakami Mountains, northeast Japan. Paleontological Journal 41:424-428 [M. Clapham/M. Clapham]

Secondary references:

62779 J. I. Tazawa. 2017. Spinomarginifera and Waagenoconcha (Productida, Brachiopoda) from the middle Permian (Wordian-Capitanian) of the South Kitakami Belt, Japan. Science Reports, Niigata University (Geology) 32:33-56 [M. Clapham/M. Clapham]