Where: Japan (39.1° N, 141.6° E)

• Paleocoordinates: 15.0° N, 144.0° E (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Lower part

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: K. Nakamura. 1972. Permian Davidsoniacea from the southern Kitakami Mountains, Japan. Journal of the Faculty of Science, Hokkaido University, Series 4, Geology and Mineralogy 15:361-425 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 114481: authorized by Matthew Clapham, entered by Matthew Clapham on 15.08.2011

Creative Commons license: CC0 (CC0)