Where: Guizhou, China (26.1° N, 105.3° E: paleocoordinates 4.1° N, 95.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Longtan Formation, Changhsingian (254.0 - 252.3 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified mudstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: Y. Q. Gao, G. R. Shi, and Y. Q. Peng. 2009. A new bivalve fauna from the Permian-Triassic boundary section of southwestern China. Alcheringa 33:33-47 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108551: authorized by Matthew Clapham, entered by Matthew Clapham on 01.05.2011

Creative Commons license: CC BY-NC-ND (attribution-noncommercial-no derivatives)