Where: Shaanxi, China (33.0° N, 107.9° E: paleocoordinates 10.8° N, 92.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

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

• group of beds-level stratigraphic resolution

Environment/lithology: deep-water; lithified mudstone

Size class: macrofossils

Preservation: mold/impression

Primary reference: H. F. Yin. 1983. Uppermost Permian (Changxingian) pectinacea from south China. Rivista Italiana di Paleontologia e Stratigrafia 88(3):337-386 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 121410: authorized by Matthew Clapham, entered by Matthew Clapham on 03.12.2011

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