Where: Inyo County, California (35.8° N, 116.2° W: paleocoordinates 1.8° S, 97.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Arcuolenellus cf. megafrontalis trilobite zone, Emigrant Pass Member (Zabriskie Quartzite Formation), Dyeran (515.3 - 511.2 Ma)

• Arcuolenellus cf. megafrontalis zonule, subunit 1

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified sandstone and lithified shale

Size class: macrofossils

Collection methods: Spewcimens from this site are split into an informal zonation. The zonation utilizes both acme and occurrence zonules, and subdivides some zonules into numbered subunits based on clearly distinguishable assemblages. However, relative species abundances, although reflected to some extent in the biostratigraphic zonation, are not listed. Only trilobites are included in the faunal list. The zonule name will be listed in the Zone datafield.

Primary reference: E. D. Fowler. 1999. Biostratigraphy of upper Dyeran strata of the Carrara Formation, Emigrant Pass, Nopah Range, California. Laurentia 99: V field conference of the Cambrian Stage Subdivision Working Group, International Subcomission on Cambrian Stratigraphy 46-50 [M. Patzkowsky/P. Borkow]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 10603: authorized by Mark Patzkowsky, entered by Phil Borkow on 29.05.2001

Creative Commons license: CC BY (attribution)