Collection 41158, Grassy Spring Mb., Pioche Shale, Nevada - Eddy and McCollum: Solvan, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Ptychopariida
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Mexicella granulata n. sp.
Eddy and McCollum 1998
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4 specimens | |||||||||
| 4 cranidia | ||||||||||
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Mexicella stator
(Walcott 1916)
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6 specimens | |||||||||
| 6 cranidia | ||||||||||
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Mexicella mexicana
Lochman 1948
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5 specimens | |||||||||
| 5 cranidia | ||||||||||
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Trilobita
- Ptychopariida
- Ptychopariidae
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Volocephalina variosa n. sp.
Eddy and McCollum 1998
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11 specimens | |||||||||
| 11 cranidia | ||||||||||
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Nyella granosa
(Resser 1939)
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3 specimens | |||||||||
| recombined as Palmerara granosa | ||||||||||
| 3 cranidia | ||||||||||
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Nyella immoderata
Palmer and Halley 1979
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6 specimens | |||||||||
| 5 cranidia, 1 pygidium | ||||||||||
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Trilobita
- Corynexochida
- Zacanthoididae
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Albertellina aspinosa
Palmer and Halley 1979
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33 specimens | |||||||||
| 10 cranidia, 18 pygidia, 2 librigena, 3 hypostomes | ||||||||||
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Ursinella major n. gen., n. sp.
Eddy and McCollum 1998
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1 specimen | |||||||||
| 1 pygidium | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada | County: | Lincoln |
| Coordinates: | 37.9° 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 | ||
| *International age/stage: | Solvan | ||
| Key time interval: | Solvan | Zone: | Albertella Biozone |
| Age range of interval: | 510.00000 - 504.50000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Pioche Shale | Member: | Grassy Spring |
| Local section: | Black Canyon North #2 | Local bed: | 39 meters from base of bed |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | lithified packstone |
| Lithology description: shale | |
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: | 9452 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow | Research group: | marine invertebrate |
| Created: | 2000-11-04 18:30:39 | 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] |