Where: Yunnan, China (23.7° N, 103.3° E: paleocoordinates 27.5° N, 93.0° E)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Huobachong Formation, Norian (228.0 - 208.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; lithology not reported

Size class: macrofossils

Reposited in the NIGPAS

Primary reference: Z. J. Fang, J. H. Chen, C. Z. Chen, J. G. Sha, X. Lan and S. Z. Wen. 2009. Supraspecific taxa of the Bivalvia first named, described, and published in China (1927-2007). The University of Kansas Paleontological Contributions, New Series 17:1-157 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 200974: authorized by Alex Dunhill, entered by Bethany Allen on 27.04.2019

Creative Commons license: CC BY (attribution)