Where: Guizhou, China (25.6° N, 106.2° E: paleocoordinates 4.8° S, 97.1° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: 1 Member (Shaiwa Formation), Wordian (268.8 - 265.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, cherty/siliceous claystone

Size class: macrofossils

Reposited in the NIGPAS

Primary reference: Z. R. Zhou. 2017. Permian basinal ammonoid sequence in Nanpanjiang area of South China - possible overlap between basinal Guadalupian and platform-based Lopingian. Journal of Paleontology 91(Memoir 74):1-95 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 185566: authorized by Matthew Clapham, entered by Matthew Clapham on 29.04.2017

Creative Commons license: CC BY (attribution)