Resting Springs Range (USGS 3674-CO) (Cambrian of the United States)

Where: California (36.1° N, 116.2° W: paleocoordinates 1.8° S, 96.8° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Olenellus trilobite zone, Eagle Mountain Shale Member (Carrara Formation), Dyeran (516.0 - 513.0 Ma)

• Locally, thin limestone interbeds in the upper part of the member yield representatives of the Bristolia Zonule, which characterizes the overlying Thimble Limestone Member.

• member-level stratigraphic resolution

Environment/lithology: coastal; gray, green, silty shale and tabular packstone

• In the upper half of the Eagle Mountain Shale Member carbonate interbeds predominate. These are again lensoidal and thin bedded and consist of echinoderm and trilobite fragment packstones with a muddy carbonate and terrigenous matrix.

Size classes: macrofossils, mesofossils, microfossils

Primary reference: A. R. Palmer and R. B. Halley. 1979. Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the Southern Great Basin. United States Geological Survey Professional Paper 1047:1-131 [W. Kiessling/M. Krause/J. Ju]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 149694: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 20.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Redlichiida - Biceratopsidae
Bristolia bristolensis Resser 1928 trilobite