Where: Henan, China (34.5° N, 113.1° E: paleocoordinates 7.6° S, 143.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Blackwelderia trilobite zone, Kushan Formation, Guzhangian (500.5 - 497.0 Ma)

• Blackwelderia zone of N China Platform area = Lejopyge laevigata-Proagnostus bulbus zones of S China (Peng 2009)

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified, calcareous siltstone

Size class: macrofossils

Preservation: cast, mold/impression

Primary reference: X. Sun. 1989. Cambrian agnostids from the North China Platform. Palaeontologia Cathayana 4:53-129 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 126816: authorized by Wolfgang Kiessling, entered by Uta Merkel on 18.04.2012

Creative Commons license: CC BY (attribution)