Where: Yunnan, China (23.9° N, 101.4° E: paleocoordinates 22.2° N, 104.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hepingxiang Formation, Bajocian to Bajocian (170.3 - 166.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithified lithology not reported

Size class: macrofossils

Preservation: mold/impression

Reposited in the NIGPAS

Primary reference: H. Z. Pan. 1977. Mesozoic and Cenozoic fossil Gastropoda from Yunnan. Mesozoic Fossils from Yunnan 2:83-152 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 165457: authorized by Matthew Clapham, entered by Matthew Clapham on 19.01.2015

Creative Commons license: CC BY (attribution)