Grapevine Mountains (USGS 4144-CO) (Cambrian of the United States)

Where: California (36.8° N, 117.1° W: paleocoordinates 1.3° S, 96.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Olenellus trilobite zone, Thimble Limestone Member (Carrara Formation), Dyeran (515.3 - 511.2 Ma)

• This member typically has abundant and diverse

•olenellid trilobites and rare associated ptychopariid trilobites

•which characterize the Bristolia Zonule.

• member-level stratigraphic resolution

Environment/lithology: shallow subtidal; dolomitic, black, brown, argillaceous lime mudstone

• The Thimble Limestone Member is characterized by

•black, brown, and orange thin-bedded argillaceous

•dolomitic limestone which varies in argillaceous content

•throughout the study area.

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 149610: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 15.08.2013, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Redlichiida - Biceratopsidae
Bristolia bristolensis Resser 1928 trilobite
Bristolia anteros n. sp. Palmer and Halley 1979 trilobite
Bristolia fragilis n. sp. Palmer and Halley 1979 trilobite
 Redlichiida - Olenellidae
Peachella iddingsi Walcott 1884 trilobite
Olenellus nevadensis Walcott 1910 trilobite
Olenellus gilberti White 1874 trilobite
Olenellus puertoblancoensis Lochman 1952 trilobite
Olenellus clarki Resser 1928 trilobite