USGS D-1866-CO: Mohawkian, Nevada
collected by J. Ross, Jr.
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Strophomenida
- Plectambonitidae
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Plectambonitidae indet.
Kozlowski 1929
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| "Plectambonitid" | ||||||||||
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Rhynchonellata
- Orthida
- Plaesiomyidae
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? Valcourea sp.
Raymond 1911
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Trilobita
- Asaphida
- Asaphidae
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? Isotelus sp.
Dekay 1824
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada | County: | Eureka |
| Coordinates: | 39.2° North, 116.3° West (view map) | ||||
| Paleocoordinates: | 6.5° South, 77.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Mohawkian | Brachiopod zone: | O |
| Age range of interval: | 457.00000 - 451.10000 m.y. ago |
Stratigraphy
| Formation: | Copenhagen | Member: | B |
| Local section: | Antelope Valley Composite | Local bed: | 35-39 ft |
| Local order: | bottom to top | ||
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Lithology description: silty; sandy; bioturbated | |||
| Environment: | deep subtidal shelf | Tectonic setting: | passive margin |
| Geology comments: middle shelf | |||
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (float),field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collectors: | J. Ross, Jr. |
Metadata
| Also known as: | SF 198; USGS D 1866 CO | ||
| Database number: | 104483 | ||
| Authorizer: | S. Finnegan | Enterer: | S. Finnegan |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2011-02-07 12:04:21 | Last modified: | 2017-03-15 17:27:28 |
| Access level: | the public | Released: | 2011-02-07 12:04:21 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 25411. | R. J., J.r. Ross. 1970. Ordovician Brachiopods, Trilobites, and Stratigraphy in Eastern and Central Nevada. United States Geological Survey Professional Paper 639:1-99 [S. Finnegan/S. Finnegan/P. Wagner] |