Davis 180A: Middle Ordovician, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Asaphida
- Asaphidae
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Isotelus sp.
Dekay 1824
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| "Isotelus sp. (large)" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Inyo |
| Coordinates: | 36.9° North, 118.1° West (view map) | ||||
| Paleocoordinates: | 5.9° South, 84.8° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| 10 m.y. bin: | Ordovician 2-3 | ||
| Key time interval: | Middle Ordovician | ||
| Age range of interval: | 470.00000 - 458.40000 m.y. ago |
Stratigraphy
| Formation: | Barrel Spring |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | not reported | ||
| Includes fossils? | Y | ||
| Environment: | marine indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils,mesofossils,microfossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis |
| Museum repositories: | USGS |
Metadata
| Database number: | 196182 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2018-09-06 12:07:18 | Last modified: | 2018-09-06 12:07:18 |
| Access level: | the public | Released: | 2018-09-06 12:07:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 66726. | D. C. Ross. 1966. Stratigraphy of some Paleozoic formations in the Independence quadrangle, Inyo County, California. United States Geological Survey Professional Paper 396:1-64 [J. Marcot/J. Marcot] |