Where: Japan (38.8° N, 141.4° E: paleocoordinates 34.7° N, 117.8° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Toyoma Formation, Changhsingian (254.2 - 252.2 Ma)

• Higher in the Toyoma Formation

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified shale

Size class: macrofossils

Primary reference: M. Murata. 1969. Molluscan fauna of the Toyoma Formation (Late Permian). Saito Ho-on Kai Museum of Natural History Research Bulletin 38:1-22 [M. Clapham/M. Clapham/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 113883: authorized by Matthew Clapham, entered by Matthew Clapham on 06.08.2011

Creative Commons license: CC BY (attribution)