USGS 2544-CO (Cambrian of the United States)

Where: White Pine County, Nevada (40.0° N, 114.9° W: paleocoordinates 4.0° S, 87.4° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

When: Dunderbergia trilobite zone, Dunderberg Shale Formation, Steptoean (501.0 - 485.4 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

• Massive limestone

Size class: macrofossils

Collected by A. R. Palmer in the 1960s; reposited in the USGS, USNM

Collection methods: mechanical,

Primary reference: A. R. Palmer. 1965. Trilobites of the Late Cambrian Pterocephaliid Biomere in the Great Basin, United States. United States Geological Survey Professional Paper 493:1-105 [M. Hopkins/M. Hopkins]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 110449: authorized by Melanie Hopkins, entered by Melanie Hopkins on 08.06.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Ptychopariida - Elviniidae
Dunderbergia bigranulosa Palmer 1960 trilobite
 Olenida - Aphelaspidae
Litocephalus verruculapeza Palmer 1960 trilobite
 Olenida - Pterocephaliidae
Pterocephalia elongata Palmer 1960 trilobite