Bowen Formation, Thompson Valley: Caradoc, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Florideophyceae
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Tetradium fibratum
Safford 1856
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| recombined as Prismostylus fibratum | ||||||||||
| Safford | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Virginia | County: | Tazewell |
| Coordinates: | 37.0° North, 81.6° West (view map) | ||||
| Paleocoordinates: | 29.6° South, 61.9° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Caradoc | ||
| Age range of interval: | 458.40000 - 449.60000 m.y. ago |
Stratigraphy
| Formation: | Bowen | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Blackriveran | |||||
Lithology and environment
| Primary lithology: | desiccation cracks,red mudstone |
| Includes fossils? | Y |
| Lithology description: Red lumpy mudrocks. Some of the beds are mottled light maroon and apple green. Bedding in the upper 8 to 12 feet is straticulate, and mudcracks are abundant. Desiccation of the sediment soon after its deposition produced hexagonal jointing, causing the mucrock to weather into columns. | |
| Environment: | carbonate indet. |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 34265 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2003-08-25 12:53:19 | Last modified: | 2024-03-31 19:20:47 |
| Access level: | the public | Released: | 2003-08-25 12:53:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 8880. | B. N. Cooper and C. E. Prouty. 1943. Stratigraphy of the Lower Middle Ordovician of Tazewell County, Virginia. Bulletin of the Geological Society of America 54:819-886 [S. Holland/T. Hanson/T. Hanson] |