Northern Montezuma Range, Poleta Fm., Nevadella zone, section IS 45 (Cambrian of the United States)

Where: Esmeralda County, Nevada (37.7° N, 117.3° W: paleocoordinates 3.5° S, 96.9° W)

• coordinate estimated from map

• outcrop-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: shallow subtidal; brown shale

• light brown shale with locally common trilobite sclerites and


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 140573: 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