Where: Japan (32.3° N, 130.3° E: paleocoordinates 44.6° N, 123.8° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Gannohana Member (Enokuchi Formation), Early/Lower Cenomanian (99.6 - 93.5 Ma)
• bed-level stratigraphic resolution
Environment/lithology: shoreface; lithified, coarse-grained sandstone and lithified, gray, sandy mudstone
•elly and coarse-grained sandstone are exposed in the
•island’s northern parts (Locs. 2903–2909)
•It thickens northeastward,
•and attains more than 10 m thickness (Locs. 2903,
•3201). The sandstones are characterized by crossstratified
•and lenticular to flaser-bedding containing
•wave and current ripple laminations (Locs. 1707,
•2903).
Size class: macrofossils
Primary reference: 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]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 122344: authorized by Martin Aberhan, entered by Daniel Wellmanns on 21.12.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
| Bivalvia | |
|
Leptosolen sp. Conrad 1865 clam | |
|
Pulsidis higoensis clam | |
|
Tetoria matsumotoi clam | |
|
Nemocardium kyushuensis cockle | |
|
Brachidontes mashikensis mussel | |
|
Crassostrea kawauchidensis Tamura 1977 oyster | |
|
Anomia foldia jingle | |