Mineral Ridge, Localities 1672 (Cambrian of the United States)

Where: Esmeralda County, Nevada (37.8° N, 117.8° W: paleocoordinates 3.1° S, 96.7° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nevadella zone, Lower Mb. Member (Poleta Formation), Montezuman (530.0 - 516.0 Ma)

• shale unit of lower member

Environment/lithology: offshore; shale

• middle shale unit of the lower member of the Poleta Formation

Size classes: macrofossils, mesofossils

Primary reference: J. S. Hollingsworth. 2006. Holmiidae (Trilobita: Olenellina) of the Montezuman Stage (Early Cambrian) in Western Nevada. Journal of Paleontology 80(2):309-332 [W. Kiessling/M. Krause]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 140580: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 12.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

 Redlichiida - Holmiidae
Grandinasus argentus Walcott 1910 trilobite