Where: Japan (38.4° N, 141.4° E: paleocoordinates 41.5° N, 119.7° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Rifu Formation, Pelsonian (247.2 - 242.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, sandy shale

Size class: macrofossils

Preservation: mold/impression

Primary reference: Y. Bando. 1964. The Triassic stratigraphy and ammonite fauna of Japan. Science Reports of the Tohoku University. Second Series, Geology 36:1-137 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101739: authorized by Matthew Clapham, entered by Matthew Clapham on 31.12.2010

Creative Commons license: CC BY (attribution)