Grapevine Mountains (USGS 7184-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, Echo Shale Member (Carrara Formation), Dyeran (515.3 - 511.2 Ma)

• A single collection from the Titanothere Canyon section in the Grapevine Mountains yielded a few specimens identified as Olenellus clarki (Resser) and Olenellus sp. undet. 1.

• member-level stratigraphic resolution

Environment/lithology: coastal; tabular, micaceous, green shale

• This member is a green micaceous platy shale that

•separates the Thimble and Gold Ace Limestone Members

•of the Carrara Formation.

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 149611: 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
"Olenellus multinodus" = Nephrolenellus multinodus
"Olenellus multinodus" = Nephrolenellus multinodus Palmer and Halley 1979 trilobite
 Redlichiida - Olenellidae
Olenellus "sp. indet.1" Hall 1861 trilobite
Olenellus gilberti White 1874 trilobite