Kitazawa (Middle), Toyoma-cho, Tome-gun, Miyagi Prefecture: Wuchiapingian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Protobranchia
7 specimens
Bivalvia - Cardiida - Kalenteridae
2 specimens
Bivalvia - Carditida - Astartidae
54 specimens
(4 measurements)
Gastropoda - Murchisoniina - Gosseletinidae
15 specimens
Gastropoda - Bellerophontida - Euphemitidae
73 specimens
(11 measurements)
Gastropoda - Bellerophontida - Bellerophontidae
2 specimens
4 specimens
(3 measurements)
Gastropoda - Euomphalina - Euomphalidae
1 specimen
see common names

Geography
Country:Japan
Coordinates: 38.7° North, 141.3° East (view map)
Paleocoordinates:1.7° North, 134.1° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Permian Epoch: Lopingian
Stage: Wuchiapingian 10 m.y. bin: Permian 4
Key time interval: Wuchiapingian
Age range of interval: 259.857 - 254.14 m.y. ago
Stratigraphy
Formation:Toyoma
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified mudstone
Environment:marine indet.
Taphonomy
Modes of preservation:cast,mold/impression
Size of fossils:macrofossils
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:113879
Authorizer:M. Clapham Enterer:M. Clapham
Modifier:M. Clapham Research group:marine invertebrate
Created:2011-08-06 14:56:19 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-08-06 14:56:19
Creative Commons license:CC0
Reference information

Primary reference:
33619. M. Murata. 1969. Molluscan fauna of the Toyoma Formation (Late Permian). Saito Ho-on Kai Museum of Natural History Research Bulletin 38:1-22 [M. Clapham/M. Clapham/P. Wagner]