Loc. 1, Sendai nuclear power station, Guzimaki area: Barremian - Aptian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonoidea
Gastropoda
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia sp. van Hoepen 1929
Bivalvia - Arcida - Parallelodontidae
8 specimens
Bivalvia - Protobranchia - Sareptidae
1 specimen
Bivalvia - Protobranchia - Nuculidae
Echinoidea
see common names

Geography
Country:Japan State/province:Kagoshima
Coordinates: 31.8° North, 130.2° East (view map)
Paleocoordinates:38.3° North, 141.4° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Barremian - Aptian 10 m.y. bin: Cretaceous 2 - Cretaceous 3
Key time interval: Barremian - Aptian
Age range of interval: 125.77 - 113.2 m.y. ago
Stratigraphy
Formation:Sendai
Stratigraphic resolution:group of beds
Stratigraphy comments: "Sendai Formation"
Lithology and environment
Primary lithology:gray mudstone
Secondary lithology: sandy mudstone
Lithology description: thick dark gray mudstone and sandy mudstone
Environment:transition zone/lower shoreface
Glacial or sequence phase:regressive
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:142514
Authorizer:M. Aberhan Enterer:T. Schossleitner
Modifier:T. Schossleitner Research group:marine invertebrate
Created:2013-04-12 19:12:08 Last modified:2025-02-22 15:12:02
Access level:the public Released:2013-04-12 19:12:08
Creative Commons license:CC0
Reference information

Primary reference:
46268. T. Komatsu, M. Watanabe, and N. Ishida. 2009. Lower Creatceous bivalves form Gumizaki area, Kagoshima prefecture, Japan. Memoir of the Fukui Prefectural Dinosaur Museum 8:11-29 [M. Aberhan/T. Schossleitner]