Where: Shandong, China (36.7° N, 117.1° E: paleocoordinates 6.0° S, 140.0° E)

• outcrop-level geographic resolution

When: Tsinania trilobite zone, Chaomidian Formation, Furongian (497.0 - 485.4 Ma)

• Lower part of formation. Also given as Chau-mi- tien Formation. PJW: Papers about Plectronoceras note that it is the Tsinania zone.

• group of beds-level stratigraphic resolution

Environment/lithology: limestone

Size class: macrofossils

Collected by Blackwelder

Primary reference: C. D. Walcott. 1905. Cambrian faunas of China. Proceedings of the United States National Museum 29:1-106 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 157404: authorized by Pete Wagner, entered by Pete Wagner on 19.06.2014

Creative Commons license: CC BY (attribution)