Goshoura Island (Loc.1506): Albian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Ostreida - Ostreidae
Bivalvia - Cardiida - Cardiidae
Bivalvia - Trigoniida - Megatrigoniidae
Pterotrigonia amakusensis Tashiro and Matsuda 1983
see common names

Geography
Country:Japan
Coordinates: 32.3° North, 130.3° East (view map)
Paleocoordinates:36.0° North, 141.7° East (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Albian 10 m.y. bin: Cretaceous 4
Key time interval: Albian
Age range of interval: 113.2 - 100.5 m.y. ago
Stratigraphy
Geological group:Goshoura Formation:Enokuchi Member:Hokahira
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:bioturbation lithified sandstone
Secondary lithology:black,gray lithified mudstone
Lithology description: The upper part consists of the alternated beds of sandstone and dark gray to black mudstone. The mudstone color gradually changes from dark gray through red and light green to dark gray mudstones toward the top of this member.
Environment:transition zone/lower shoreface
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:paleoecologic analysis
Metadata
Database number:123132
Authorizer:M. Aberhan Enterer:D. Wellmanns
Modifier:D. Wellmanns Research group:marine invertebrate
Created:2012-01-12 01:12:47 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2017-01-12 01:12:47
Creative Commons license:CC0
Reference information

Primary reference:
38682. T. Komatsu and H. Maeda. 2005. Stratigraphy and fossil bivalve assemblages of the mid-Cretaceous Goshoura Group, southwest Japan. Paleontological Research 9(2):119-142 [M. Aberhan/D. Wellmanns]