USGS 2590-CO (Cambrian of the United States)

Where: White Pine County, Nevada (40.1° N, 115.6° W: paleocoordinates 3.4° S, 86.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Steptoean (497.0 - 493.5 Ma)

• Footage estimated from scaled stratigraphic section (Plate 22). Formation unnamed but equivalent to Lincoln Peak Formation.

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal shelf; lithified siltstone and lithified, silty limestone

• outer detrital belt according to Palmer (1971).
• Interbedded siltstone and silty limestone (legend also depicts nodular limestone in silty beds).

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 122124: authorized by Melanie Hopkins, entered by Melanie Hopkins on 17.12.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Olenida - Pterocephaliidae
Tumicephalus depressus
Tumicephalus depressus Palmer 1965 trilobite
 Olenida - Aphelaspidae
Dicanthopyge quadrata
Dicanthopyge quadrata Palmer 1965 trilobite