US Highway 19 at Elway: Chazyan, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Strophomenata
- Strophomenida
- Strophomenidae
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Rhipidomena subparallela
Cooper 1956
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Strophomenata
- Strophomenida
- Glyptomenidae
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Pionomena neumani
Cooper 1956
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Rhynchonellata
- Orthida
- Plaesiomyidae
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Dinorthis holdeni
(Willard 1928)
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Rhynchonellata
- Orthida
- Plectorthidae
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Mimella intermedia
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Mimella informal sp. I
Cooper 1930
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Rhynchonellata
- Atrypida
- Protozygidae
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Protozyga microscopica
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Rhynchonellata
- Pentamerida
- Camerellidae
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Camerella costellata
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Camerella indefinita
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Camerella multiplicata
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Camerella perplexa
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Lingulata
- Lingulida
- Obolidae
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Lingulella decorticata
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see common names |
Geography
Country: | United States | State/province: | Virginia | County: | Russell |
Coordinates: | 37.0° North, 82.0° West (view map) | ||||
Paleocoordinates: | 30.3° South, 67.8° West | ||||
Basis of coordinate: | based on nearby landmark |
Time
Period: | Ordovician | Epoch: | Middle Ordovician |
Stage: | Darriwilian | ||
Key time interval: | Chazyan | Conodont zone: | Cahabagnathus sweeti |
Age range of interval: | 468.10000 - 460.90000 m.y. ago |
Stratigraphy
Formation: | Elway |
Lithology and environment
Primary lithology: | fine,gray lithified cherty/siliceous "limestone" |
Lithology description: The rock is usually a fine-grained, light-gray limestone interbedded with layers of dark-gray to black chert. | |
Environment: | shallow subtidal indet. |
Taphonomy
Modes of preservation: | body,original aragonite,replaced with calcite |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some genera |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | USNM |
Metadata
Database number: | 186172 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner | Research group: | marine invertebrate |
Created: | 2017-06-16 17:04:44 | Last modified: | 2017-06-16 17:04:44 |
Access level: | the public | Released: | 2017-06-16 17:04:44 |
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] |