Where: Japan (32.3° N, 130.3° E: paleocoordinates 44.6° N, 127.0° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Hokahira Member (Enokuchi Formation), Albian (113.0 - 100.5 Ma)
• bed-level stratigraphic resolution
Environment/lithology: marginal marine; lithified, bioturbated sandstone
•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.
Size class: macrofossils
Preservation: shellbed
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 123165: authorized by Martin Aberhan, entered by Daniel Wellmanns on 13.01.2012
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Trigonioides sp. Kobayashi and Suzuki 1936 clam | |
Pharella sp. clam | |
Leptosolen sp. Conrad 1865 clam | |
Tetoria matsumotoi clam | |
Nemocardium kyushuensis cockle | |
Brachidontes mashikensis mussel
Septifer mifunensis Tamura 1976 mussel | |
Placunopsis sp. Morris and Lycett 1853 scallop
Anomia foldia jingle | |
Isognomon sp. Lightfoot 1786 oyster | |
Crassostrea kawauchidensis Tamura 1977 oyster |