Groom Range, Carrara Fm, Thimble Limestone Mbr. (USGS 3787-CO) (Cambrian of the United States)

Where: Nevada (37.5° N, 115.7° W: paleocoordinates 2.5° S, 95.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Olenellus trilobite zone, Thimble Limestone Member (Carrara Formation), Dyeran (516.0 - 513.0 Ma)

• member-level stratigraphic resolution

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

• 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 149557: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 09.08.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Trilobita
 Redlichiida - Olenellidae
Olenellus clarki Resser 1928 trilobite
Olenellus gilberti White 1874 trilobite
Peachella iddingsi Walcott 1884 trilobite