D1482 CO: Whiterockian, Nevada
collected by J. Ross, Jr.
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Ostracoda
- Leperditicopida
- Leperditiidae
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Eoleperditia cf. bivia
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Ostracoda
- Palaeocopida
- Schmidtellidae
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Schmidtella sp.
Ulrich 1892
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| "Shmidtella" | ||||||||||
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Trilobita
- Proetida
- Bathyuridae
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Bathyurus nevadensis
Ross and Barnes 1967
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Rhynchonellata
- Orthida
- Anomalorthidae
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Anomalorthis nevadensis
Ulrich and Cooper 1938
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada | County: | Nye |
| Coordinates: | 38.5° North, 116.4° West (view map) | ||||
| Paleocoordinates: | 6.1° South, 80.8° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Ordovician | ||
| 10 m.y. bin: | Ordovician 2-4 | ||
| Key time interval: | Whiterockian | Brachiopod zone: | M-N |
| Age range of interval: | 470 - 457 m.y. ago |
Stratigraphy
| Geological group: | Pogonip | Formation: | Antelope Valley | Member: | Middle |
| Local section: | Hot Creek Canyon, Hot Creek Range | Local bed: | 203 - 209 ft | ||
| Local order: | bottom to top | ||||
| Regional order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Whiterockian; no formal stage | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" | ||
| Lithology description: silty; nodular; thinly and crudely laminated; Girvanella abundant; interlayered w/calcarenite in .5 to 1 ft. beds | |||
| Environment: | shallow subtidal indet. | Tectonic setting: | passive margin |
| Geology comments: carbonate platform | |||
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 18 | ||
| Database number: | 104373 | ||
| Authorizer: | S. Finnegan | Enterer: | S. Finnegan |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2011-02-07 12:04:21 | Last modified: | 2023-09-05 17:24:43 |
| 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] |