Where: Japan (35.4° N, 136.6° E: paleocoordinates 23.1° N, 110.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yabeina globosa foram zone, Akasaka Formation, Capitanian (265.0 - 259.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified, silty packstone

Size class: macrofossils

Collected by T. Asami, A. Hosono

• Specimens in Asami Fossil Museum

Primary reference: K. Nakazawa. 2007. Minute bivalve fossils from the Permian Akasaka Limestone, Central Japan, (Appendix) Description of a new species of Pernopecten. Earth Science (Chikyu Kagaku) 61:187-201 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 109667: authorized by Matthew Clapham, entered by Matthew Clapham on 20.05.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)