Where: Sichuan, China (29.3° N, 103.5° E: paleocoordinates 30.6° N, 162.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Palaeolenus trilobite zone, Yuxiansi Formation, Nangaoian to Nangaoian (521.0 - 509.0 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithology not reported

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: S. Li, C. Kang, and X. Zhang. 1990. Sedimentary environment and trilobites of Lower Cambrian Yuxiansi Formation in Leshan District, Sichuan. Bulletin of the Chengdu Institute of Geology and Mineral Resources 12:37-56 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 130129: authorized by Wolfgang Kiessling, entered by Uta Merkel on 04.07.2012

Creative Commons license: CC BY (attribution)