USGS 2563-CO (Cambrian of the United States)

Where: Lincoln County, Nevada (38.5° N, 115.0° W: paleocoordinates 4.0° S, 88.9° W)

• coordinate based on unpublished field data

• outcrop-level geographic resolution

When: Dunderbergia trilobite zone, Corset Spring Shale Formation, Steptoean (497.0 - 493.5 Ma)

• Footage estimated from scaled stratigraphic section (Plate 22)

Environment/lithology: lithified limestone

• thin-bedded 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 114296: authorized by Melanie Hopkins, entered by Melanie Hopkins on 13.08.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

 Olenida - Pterocephaliidae
Parahousia subequalis Palmer 1965 trilobite
Pterocephalia sanctisabae Roemer 1849 trilobite
Sigmocheilus pogonipensis Resser 1942 trilobite
Housia ovata Palmer 1960 trilobite
 Olenida - Dokimokephalidae
Apachia butlerensis Frederickson 1949 trilobite
 Corynexochida - Cheilocephalidae
Oligometopus contractus Palmer 1965 trilobite
Cheilocephalus brachyops Palmer 1965 trilobite
 Ptychopariida - Elviniidae
Elburgia quinnensis Resser 1942 trilobite
 Ptychopariida - Kingstoniidae