USNM Locality 1p. 3 miles southeast of Barrel Spring, half mile east of road.: Dyeran, Nevada

List of taxa
Where & when
Taphonomy & methods
Metadata & references
Taxonomic list
Paterinata - Paterinida - Paterinidae
Micromitra (Paterina) prospectensis (Walcott 1884)
recombined as Iphidella prospectensis
Rhynchonellata - Orthida - Eoorthidae
Nisusia (Jamesella) argenta n. sp. Walcott 1905
recombined as Pompeckium argenteum
Trilobita - Redlichiida - Olenellidae
Olenellus fremonti Walcott 1910
recombined as Mesonacis fremonti
Olenellus gilberti White 1874
see common names

Country:United States State/province:Nevada County:Esmeralda
Coordinates: 37.5° North, 117.5° West (view map)
Paleocoordinates:1.1° South, 95.2° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Period:Cambrian Epoch:Series 2
10 m.y. bin:Cambrian 2-3
Key time interval:Dyeran Trilobite zone: Bonnia - Olenellus
Age range of interval:514.80000 - 511.00000 m.y. ago
Formation:Poleta Member:Upper
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: lithified silty "limestone"
Lithology description: shaly limestone containing fragments of Olenellus.
Environment:offshore indet. Tectonic setting:passive margin
Modes of preservation:mold/impression
Lagerst�tten type:conservation
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:selective quarrying,surface (float),surface (in situ)
Reason for describing collection:taxonomic analysis
Museum repositories:LACM,TMM,UCMP,USNM
Database number:203344
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:J. Marcot Research group:marine invertebrate
Created:2019-08-12 23:00:04 Last modified:2022-07-03 15:26:10
Access level:the public Released:2019-08-12 23:00:04
Creative Commons license:CC BY
Reference information

Primary reference:

13472. C. D. Walcott. 1912. Cambrian Brachiopoda. United States Geological Survey Monograph 51(1-2) [A. Miller/A. Hendy/A. Hendy]

Secondary references:

69731 A. J. Rowell. 1977. Early Cambrian Brachiopods from the Southwestern Great Basin of California and Nevada. Journal of Paleontology 51(1):68-85 [P. Wagner/P. Wagner]