Yotsushiro, Ochi, Sakawa area, Bunjo Formation, Kochi: Aptian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Pectinida - Neitheidae
2 specimens
Bivalvia - Cardiida - Cardiidae
Bivalvia - Trigoniida - Megatrigoniidae
Bivalvia - Carditida - Carditidae
1 specimen
see common names

Geography
Country:Japan
Coordinates: 33.5° North, 133.3° East (view map)
Paleocoordinates:40.6° North, 144.6° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Aptian 10 m.y. bin: Cretaceous 3
Key time interval: Aptian
Age range of interval: 121.4 - 113.2 m.y. ago
Stratigraphy
Formation:Bunjo
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified sandstone
Lithology description: medium-grained sandstone
Environment:marine indet.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Metadata
Database number:69102
Authorizer:W. Kiessling Enterer:U. Merkel
Research group:marine invertebrate
Created:2007-02-19 01:52:42 Last modified:2025-02-22 15:12:02
Access level:the public Released:2007-02-19 01:52:41
Creative Commons license:CC0
Reference information

Primary reference:
19920. M. Tashiro and T. Matsuda. 1986. Lower Cretaceous bivalves from the Sakawa area, Shikoku. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 142:366-392 [W. Kiessling/U. Merkel]