Gold Point, Poleta Fm., locality 1473 (Cambrian of the United States)

Where: Esmeralda County, Nevada (37.4° N, 117.3° W: paleocoordinates 3.4° S, 97.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Nevadella zone, Lower Mb. Member (Poleta Formation), Montezuman (520.0 - 515.3 Ma)

• from lower 10 m of Poleta Formation

Environment/lithology: shallow subtidal; limestone

• Solenopleurids, corynexochids, and Bradyfallotaspis are about as abundant as the associated holmiids, but nevadiids are still the predominant trilobites. This nevadiiddominated mixed biofacies occurs in a relatively shallow, mixed

•carbonate-siliciclastic environment. Trilobites are occasionally common in the ribbon limestone and in the shaly middle unit of the lower member of the Poleta, but very rare, except as small fragments, in the carbonate grainstones.

• basal, ribbon limestone

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 140617: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 12.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Redlichiida - Holmiidae
Grandinasus auricampus
Grandinasus auricampus Hollingsworth 2006 trilobite