Where: Japan (39.2° N, 141.6° E: paleocoordinates 17.9° N, 108.3° E)

• coordinate stated in text

• outcrop-level geographic resolution

When: Sakamotozawa Formation, Sakmarian (293.5 - 290.1 Ma)

• Basal part of Sakamotozawa Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, fine-grained, gray sandstone

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Niigata University, Faculty of Science, Department of Geology

Primary reference: G. A. Afanasjeva, J. I. Tazawa, and T. Shintani. 2015. Brachiopods of the order Chonetida from the Lower and Middle Permian of the South Kitakami Mountains, northeast Japan. Paleontological Journal 49:19-25 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165925: authorized by Matthew Clapham, entered by Matthew Clapham on 31.01.2015

Creative Commons license: CC BY (attribution)