Where: Zhejiang, China (28.9° N, 118.4° E: paleocoordinates 6.8° N, 130.0° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Arienigraptus zhejiangensis graptolite zone, Ningkuo Formation, Darriwilian (467.3 - 458.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; black, calcareous shale

Size class: macrofossils

Primary reference: C. E. Mitchell, X. Chen, S. M. Bergström, Y.-D. Zhang, Z.H. Wang, B. D. Webby, and S. C. Finney. 1997. Definition of a global boundary stratotype for the Darriwilian Stage of the Ordovician System. Episodes 20(3):158-166 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 203703: authorized by Pete Wagner, entered by Pete Wagner on 21.08.2019

Creative Commons license: CC BY (attribution)