Where: Japan (38.5° N, 141.5° E: paleocoordinates 30.1° N, 117.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Toyoma Formation, Wuchiapingian (259.9 - 254.2 Ma)

• Basal part of Toyoma Formation

• bed-level stratigraphic resolution

Environment/lithology: deep-water; lithified, sandy shale

Size class: macrofossils

Preservation: mold/impression

Primary reference: M. Ehiro and F. Takizawa. 1989. Foordiceras and Domatoceras (nautiloid cephalopods) from the Upper Permian Toyoma Formation, southern Kitakami Massif, northeast Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 155:212-217 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 107616: authorized by Matthew Clapham, entered by Matthew Clapham on 11.04.2011

Creative Commons license: CC BY (attribution)