Stewarts Mill, near Goldfield [Poleta Fm]: Montezuman, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Stenolaemata - Cystoporata - Ceramoporidae
"a skeletal organism similar to Archaeotrypa"
unclassified
Porifera indet. Grant 1836
"soft-bodied sponges"
Archaeocyatha - Archaeocyathida
"unidentified juvenile archaeocyathids"
Chabakoviacea
Renalcis sp. Vologdin 1932
Ludloviaceae
Algae
see common names

Geography
Country:United States State/province:Nevada
Coordinates: 37.7° North, 117.2° West (view map)
Paleocoordinates:18.9° North, 150.7° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Series 2
Stage: Stage 3 10 m.y. bin: Cambrian 2
Key time interval: Montezuman Trilobite zone:  Nevadella
Age range of interval: 520 - 515.3 m.y. ago
Stratigraphy
Formation:Poleta
Stratigraphic resolution:member
Stratigraphy comments: AGE: Nelson (1976, 1978) places the Poleta Formation on the boundary between the Nevadella and Bonnia-Olenellus trilobite zones, with the lower Poleta Formation (from which this collection is described) within the Nevadella zone; age revised by A. Hendy (5/2009) from "Cambrian" to Montezuman following Streng et al. (2005).
Lithology and environment
Primary lithology:hardground lithified "limestone"
Includes fossils?Y
Lithology description: Archaeocyathid patch reefs in the lower limestone member of the Poleta Fm
Environment:reef, buildup or bioherm
Geology comments: Organisms described here lived in cavities within the Archaeocyathid patch reefs.
Taphonomy
Size of fossils:macrofossils,mesofossils,microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:paleoecologic analysis
Metadata
Also known as:HG#492.1
Database number:41017
Authorizer:M. Patzkowsky Enterer:A. Krug
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-07-05 11:41:13 Last modified:2025-02-22 15:12:02
Access level:the public Released:2004-07-05 11:41:13
Creative Commons license:CC0
Reference information

Primary reference:
11052.1% 11360D. R. Kobluk. 1981. Earliest cavity-dwelling organisms (coelobionts), Lower Cambrian Poleta Formation, Nevada. Canadian Journal of Earth Sciences 18(4):669-679 [M. Patzkowsky/A. Krug/A. Krug]

Secondary references:

29272 A. Hendy, M. Aberhan, J. Alroy, M. Clapham, W. Kiessling, A. Lin, and M. LaFlamme. 2009. Unpublished ecological data in support of GSA 2009 abstract: A 600 million year record of ecological diversification. [A. Hendy/A. Hendy/A. Hendy]