Perryville Mbr. (Cornishville Bed), Lexington Limestone, Kentucky: Chatfieldian, Kentucky
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Atrypida
- Anazygidae
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Zygospira sp.
Hall 1862
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Rhynchonellata
- Orthida
- Platystrophiidae
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Platystrophia colbiensis
Foerste 1910
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Rhynchonellata
- Orthida
- Plectorthidae
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Hebertella frankfortensis
(James 1871)
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Strophomenata
- Strophomenida
- Rafinesquinidae
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Rafinesquina trentonensis
(Hall 1847)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Kentucky |
| Coordinates: | 38.0° North, 84.7° West (view map) | ||
| Paleocoordinates: | 27.3° South, 63.2° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | basin |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| 10 m.y. bin: | Ordovician 4-5 | ||
| Key time interval: | Chatfieldian | ||
| Age range of interval: | 453.70000 - 451.10000 m.y. ago |
Stratigraphy
| Formation: | Lexington Limestone | Member: | Cornishville |
| Stratigraphic resolution: | member |
Lithology and environment
| Primary lithology: | shelly/skeletal lithified lime mudstone | ||
| Secondary lithology: | "cross stratification",shelly/skeletal lithified grainstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Environment: | deep subtidal ramp | Tectonic setting: | cratonic basin |
| Geology comments: environmental call based on field notes of Holland and Patzkowsky | |||
Taphonomy
| Modes of preservation: | body,original calcite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | USNM |
Metadata
| Database number: | 34556 | ||
| Authorizer: | S. Holland | Enterer: | S. Holland |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2003-09-09 09:40:28 | Last modified: | 2003-09-10 08:42:00 |
| Access level: | the public | Released: | 2003-09-09 09:40:28 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 3965. | E. R. Cressman. 1973. Lithostratigraphy and depositional environments of the Lexington Limestone (Ordovician) of central Kentucky. USGS Professional Paper 768:1-61 [M. Patzkowsky/M. Patzkowsky/P. Wagner] |