Groom Range, Carrara Fm, Pahrump Hills Shale Member Mbr. (USGS 3692-CO) (Cambrian of the United States)

Where: Nevada (37.5° N, 115.7° W: paleocoordinates 2.3° S, 94.0° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Albertella trilobite zone, Pahrump Hills Shale Member (Carrara Formation), Delamaran (511.2 - 506.5 Ma)

• The Pahrump Hills Shale Member is poorly fossiliferous, but collections from different areas contain elements of both the Zacanthoidid and Albertella-Mexicella Zonules of the Albertella Zone.

• member-level stratigraphic resolution

Environment/lithology: paralic; brown siltstone

• The most common lithology in the lower half of the

•Pahrump Hills Shale Member is an orange-brown

•carbonate-cemented siltstone (fig. 10/4).

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 149568: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 10.08.2013, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Trilobita
 Ptychopariida - Ptychopariidae
Pachyaspis gallagari
Pachyaspis gallagari Fritz 1968 trilobite
 Corynexochida - Dorypygidae
Kootenia germana
Kootenia germana Resser 1939 trilobite