Groom Range, Carrara Fm, Pahrump Hills Shale Member Mbr. (USGS 3692-CO): Delamaran, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Ptychopariida - Ptychopariidae
Pachyaspis gallagari Fritz 1968
Trilobita - Corynexochida - Dorypygidae
Kootenia germana Resser 1939
see common names

Geography
Country:United States State/province:Nevada
Coordinates: 37.5° North, 115.7° West (view map)
Paleocoordinates:2.3° South, 94.0° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cambrian
10 m.y. bin: Cambrian 3
Key time interval: Delamaran Trilobite zone:  Albertella
Age range of interval: 511 - 506.5 m.y. ago
Stratigraphy
Formation:Carrara Member:Pahrump Hills Shale
Stratigraphic resolution:member
Stratigraphy comments: 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.
Lithology and environment
Primary lithology:brown siltstone
Lithology description: The most common lithology in the lower half of the Pahrump Hills Shale Member is an orange-brown carbonate-cemented siltstone (fig. 10/4).
Environment:paralic indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:149568
Authorizer:W. Kiessling, J. Marcot Enterer:M. Krause, J. Marcot
Modifier:J. Marcot Research group:marine invertebrate
Created:2013-08-10 01:08:35 Last modified:2022-08-02 16:16:54
Access level:the public Released:2013-08-10 01:08:35
Creative Commons license:CC BY
Reference information

Primary reference:
47804. 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]