Where: Yunnan, China (25.0° N, 100.3° E: paleocoordinates 24.0° N, 84.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Waluba Member (Weishan Formation), Alaunian (215.6 - 212.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

Preservation: mold/impression

Reposited in the NIGPAS

Primary reference: X. L. Liang. 1977. Late Triassic ammonites from Yunnan. Mesozoic Fossils from Yunnan 2:71-82 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165391: authorized by Matthew Clapham, entered by Matthew Clapham on 18.01.2015

Creative Commons license: CC BY (attribution)