Where: Xinjiang, China (40.6° N, 79.5° E: paleocoordinates 27.6° S, 121.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Amorphognathus variabilis conodont zone, Dawangou Formation, Arenig (478.6 - 466.0 Ma)

• same as bed 11 of Zhou et al 2014

Environment/lithology: slope; lithified, shelly/skeletal, gray grainstone and nodular lime mudstone

Size class: macrofossils

Collected in 1987; reposited in the NIGPAS, UNSM

• Collection made as part of an extensive field investigation of the periphery of the Tarim Basin by geologists of the Nanjing Institute of Geology and Palaeontology, Academia Sinica, and the 05 Project Administration, Bureau of Petroleum Geology of Southwest China.

Primary reference: Z. Zhou, W. T. Dean, W. Yuan and T. Zhou. 1998. Ordovician trilobites from the Dawangou Formation, Kalpin, Xinjiang, north-west China. Palaeontology 41(4):693-735 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 170839: authorized by Melanie Hopkins, entered by Melanie Hopkins on 27.06.2015

Creative Commons license: CC BY (attribution)