Gold Point, section GP-N 0: Montezuman, Nevada

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita - Redlichiida - Holmiidae
Grandinasus patulus Hollingsworth 2006
Grandinasus auricampus Hollingsworth 2006
see common names

Geography
Country:United States State/province:Nevada County:Esmeralda
Coordinates: 37.4° North, 117.3° West (view map)
Paleocoordinates:3.4° South, 97.2° West
Basis of coordinate:stated in text
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Series 2
Stage: Stage 3 10 m.y. bin: Cambrian 2
Key time interval: Montezuman Zone:  Nevadella
Age range of interval: 519.9 - 514.8 m.y. ago
Stratigraphy
Formation:Poleta Member:Lower Mb.
Lithology and environment
Primary lithology: "siliciclastic"
Environment:shallow subtidal indet.
Geology comments: in this section solenopleurids, corynexochids, and Bradyfallotaspis are about as abundant as the associated holmiids, but nevadiids are still the predominant trilobites. This nevadiiddominated mixed biofacies occurs in a relatively shallow, mixed carbonate-siliciclastic environment. Trilobites are occasionally
common in the ribbon limestone and in the shaly middle unit of the lower member of the Poleta, but very rare, except as small fragments, in the carbonate grainstones.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:140614
Authorizer:W. Kiessling Enterer:M. Krause
Modifier:M. Krause Research group:marine invertebrate
Created:2013-03-12 22:26:59 Last modified:2013-03-12 10:19:05
Access level:authorizer only Released:2013-06-12 22:26:59
Creative Commons license:CC BY
Reference information

Primary reference:
45528. J. S. Hollingsworth. 2006. Holmiidae (Trilobita: Olenellina) of the Montezuman Stage (Early Cambrian) in Western Nevada. Journal of Paleontology 80(2):309-332 [W. Kiessling/M. Krause]