1 mile east of Tilson Mill: Blackriveran, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Orthotetida
- Triplesiidae
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Oxoplecia abnormis n. sp.
Cooper 1956
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Oxoplecia holstonensis
Willard 1928
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Virginia |
| Coordinates: | 37.0° North, 81.4° West (view map) | ||
| Paleocoordinates: | 29.8° South, 61.8° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Blackriveran | Graptolite zone: | Climacograptus peltifer |
| Age range of interval: | 457.00000 - 449.80000 m.y. ago |
Stratigraphy
| Formation: | Edinburg | Member: | Effna limestone | ||
| Stratigraphic resolution: | member | ||||
| Stratigraphy comments: peltifer conodont zone | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| Lithology description: Alterations of dark granular limestone and dark fine-grained limestone with spponge spicules | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body,replaced with silica |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
Metadata
| Database number: | 186182 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2017-06-16 22:49:45 | Last modified: | 2017-06-16 22:49:45 |
| Access level: | the public | Released: | 2017-06-16 22:49:45 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 44678. | G. A. Cooper. 1956. Chazyan and related brachiopods. Smithsonian Miscellaneous Collections 127:1-1245 [P. Wagner/P. Wagner] |