Where: Japan (39.0° N, 141.5° E: paleocoordinates 21.9° N, 112.5° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Shigejizawa Member (Kanokura Formation), Roadian (272.3 - 268.8 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, sandy, calcareous slate
Size class: macrofossils
Preservation: mold/impression
Primary reference: M. Murata. 1964. Some Middle Permian Aviculopectinidae from the Kitakami Massif, northeast Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 54:215-233 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 113873: authorized by Matthew Clapham, entered by Matthew Clapham on 06.08.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Acanthopecten onukii n. sp.
Acanthopecten onukii n. sp. Murata 1964 scallop | |
"Aviculopecten sasakii n. sp." = Hayasakapecten sasakii, Aviculopecten hayasakai
"Aviculopecten sasakii n. sp." = Hayasakapecten sasakii Murata 1964 scallop
Aviculopecten hayasakai Murata 1964 scallop |