Where: Hubei, China (33.0° N, 111.0° E: paleocoordinates 15.9° N, 146.0° E)

• local area-level geographic resolution

When: Xilingxia Formation, Tremadoc (488.3 - 478.6 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; lithified carbonate and siltstone

Primary reference: X. Wang, L. Xian, S. Ni, Q. Zheng, G. Xu, T. Zhou, C. Lai and Z. Li. 1987. Biostratigraphy of the Yangtze Gorge Area. Part (2) Early Paleozoic Era. Geological Publishing House, Beijing 43-142 [A. Miller/P. Novack-Gottshall] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 4740: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 18.08.1999