Portage Canyon Member, Great Basin, Cherry Creek Range: Telychian, Nevada
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Pentamerida
- Pentameridae
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Pentameroides sp.
Schuchert and Cooper 1931
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14 specimens | |||||||||
| sp. A | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Nevada |
| Coordinates: | 39.3° North, 114.9° West (view map) | ||
| Paleocoordinates: | 9.2° South, 70.4° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Llandovery |
| Stage: | Telychian | 10 m.y. bin: | Silurian 1 |
| Key time interval: | Telychian | ||
| Age range of interval: | 438.50000 - 433.40000 m.y. ago |
Stratigraphy
| Formation: | Laketown Dolomite | Member: | Portage Canyon | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Pentameroides sp. A is said to be of Late Llandovery (C4-C5) age in text. | |||||
Lithology and environment
| Primary lithology: | black,brown,gray dolomite |
| Lithology description: brownish-black to medium dark-gray dolostone. It weathers medium dark gray to medium light gray. The degree of crystallinity ranges from microcrystalline to finely crystalline. Some parts are very finely laminated. | |
| Environment: | deep subtidal shelf |
Taphonomy
Collection methods and comments
| Collection methods: | bulk,hydrochloric,field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:Brachiopods only. | |
Metadata
| Database number: | 51541 | ||
| Authorizer: | M. Patzkowsky | Enterer: | A. Krug |
| Modifier: | A. Krug | Research group: | marine invertebrate |
| Created: | 2005-06-07 12:33:17 | Last modified: | 2005-06-07 15:33:17 |
| Access level: | the public | Released: | 2005-06-07 12:33:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 13700. | P. M. Sheehan. 1982. Late Ordovician and Silurian of the eastern Great Basin Part 4. Late Llandovery and Wenlock brachiopods. Milwaukee Public Museum Contributions in Biology and Geology 50:1-73 [M. Patzkowsky/A. Krug/A. Krug] |