Where: Jiangsu, China (32.0° N, 118.9° E: paleocoordinates 7.8° N, 99.6° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Yanqiao Formation, Wordian (266.9 - 264.3 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Primary reference: J. K. Zhao and Z. G. Zheng. 1977. The Permian ammonoids from Zhejiang and Jiangxi. Acta Palaeontologica Sinica 16:217-252 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 101614: authorized by Matthew Clapham, entered by Matthew Clapham on 25.12.2010

Creative Commons license: CC BY (attribution)