Collection 41169, Grassy Spring Mb., Pioche Shale, NV - Eddy and McCollum 1998: Solvan, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita
- Corynexochida
- Zacanthoididae
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Albertellina aspinosa
Palmer and Halley 1979
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14 specimens | |||||||||
4 cranidia, 10 pygidia | ||||||||||
Delamarella brevispinaspis n. gen., n. sp.
Eddy and McCollum 1998
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12 specimens | |||||||||
2 cranidia, 10 pygidia | ||||||||||
Trilobita
- Ptychopariida
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Mexicella granulata n. sp.
Eddy and McCollum 1998
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2 specimens | |||||||||
2 cranidia | ||||||||||
unclassified
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Pancus palmeri n. gen., n. sp.
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1 specimen | |||||||||
1 cranidium | ||||||||||
Volocphalina variosa n. sp.
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8 specimens | |||||||||
8 cranidia | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Nevada | County: | Lincoln |
Coordinates: | 37.8° North, 114.6° West (view map) | ||||
Paleocoordinates: | 3.2° South, 93.1° West | ||||
Geographic resolution: | outcrop |
Time
Period: | Cambrian | ||
10 m.y. bin: | Cambrian 3 | ||
*Period: | Middle Cambrian - Late/Upper Cambrian | *Epoch: | St. David's |
*International age/stage: | Solvan | ||
Key time interval: | Solvan | Zone: | Albertella Biozone |
Age range of interval: | 510 - 504.5 m.y. ago | ||
* legacy (obsolete) database fields |
Stratigraphy
Formation: | Pioche Shale | Member: | Grassy Spring |
Local section: | Black Canyon North #1 | Local bed: | 32 meters above the base of the section |
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | lithified packstone |
Lithology description: bioclastics (interpretted from the stratigraphic columns of figure 3). |
Taphonomy
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Collection method comments: Only trilobites from the albertellina aspinosa subbiozone were collected. |
Metadata
Database number: | 9468 | ||
Authorizer: | M. Patzkowsky | Enterer: | P. Borkow | Research group: | marine invertebrate |
Created: | 2000-11-05 14:09:58 | Last modified: | 2003-07-18 18:05:03 |
Access level: | the public | Released: | 2001-03-22 12:03:00 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
810. | J. D. Eddy and L. B. McCollum. 1998. Early Middle Cambrian Albertella biozone trilobites of the Pioche Shale, southeastern Nevada. Journal of Paleontology 72(5):864-887 [M. Patzkowsky/P. Borkow/J. Alroy] |