Where: Lincoln County, Nevada (37.6° N, 114.8° W: paleocoordinates 3.3° S, 95.5° W)

• coordinate stated in text

When: Nephrolenellus multinodus trilobite zone, Combined Metals Member (Pioche Shale Formation), Dyeran (515.3 - 511.2 Ma)

• Approximately 4 to 5 meters below the top of the Nephrolenellus multinodus zonule, Olenellus Biozone, Lower Cambrian, from the Combined Metals Member, Pioche Shale.

Environment/lithology: marginal marine; lithology not reported

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Reposited in the USNM

Primary reference: F. A. Sundberg and L. B. McCollum. 1997. Oryctocephalids (Corynexochida: Trilobita) of the Lower-Middle Cambrian boundary interval from California and Nevada. Journal of Paleontology 77(6):1065-1090 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 205007: authorized by Jonathan Marcot, entered by Jonathan Marcot on 02.10.2019

Creative Commons license: CC BY (attribution)