USGS 3784-CO: Dyeran, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Redlichiida
- Laudoniidae
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Laudonia sp.
Harrington 1956
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Trilobita
- Redlichiida
- Fallotaspididae
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Judomia sp.
Lermontova 1943
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= Avefallotaspis maria n. gen., n. sp.
McMenamin 2001
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McMenamin 2001 | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Nevada | County: | Esmeralda |
| Coordinates: | 37.9° North, 117.9° West (view map) | ||||
| Paleocoordinates: | 0.9° South, 94.7° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Cambrian | Epoch: | Series 2 |
| 10 m.y. bin: | Cambrian 2-3 | ||
| Key time interval: | Dyeran | ||
| Age range of interval: | 514.8 - 511 m.y. ago |
Stratigraphy
| Formation: | Poleta | ||||
| Stratigraphy comments: Listed on the map (Robinson et al., 1976) questionaly as ?Poleta formation. Nelson (1976) has "U.S.G.S. locality 3784" as both Montenegro Member of Campito Formation and Middle Poleta formation. McMenamin (2001) indicates holotype of Avefallotaspis maria is from Montenegro Member of Campito Formation (possibly following Nelson 1976). Hollingsworth (2007, 2011) shows the Avefallotaspis maria zone from the Poleta, so using that here, as the most recent call on this. |
Lithology and environment
| Primary lithology: | massive,gray "limestone" | ||
| Secondary lithology: | brown,gray,yellow siltstone | ||
| Includes fossils? | Y | ||
| Environment: | marine indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Also known as: | 1-51-42B | ||
| Database number: | 204015 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2019-08-29 11:53:31 | Last modified: | 2022-08-19 12:52:47 |
| Access level: | the public | Released: | 2019-08-29 11:53:31 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 69918. | P. T. Robinson, J. H. Stewart, R. J. Moiola and J. P. Albers. 1976. Geologic map of the Rhyolite Ridge quadrangle, Esmeralda County, Nevada. [J. Marcot/J. Marcot] |
Secondary references:
| 69873 | M. A. S. McMenamin. 2001. New trilobites from the Campito Formation of the White-Inyo Mountains. In M. A. S. McMenamin (ed.), Paleontology Sonora: Lipalian and Cambrian 114-116 [J. Marcot/J. Marcot] |