Pamunkey River - at Horseshoe: Middle Eocene, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Nuculanida
- Nuculanidae
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Leda coelatella
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Ward 1992 | ||||||
| synonym of Nuculana | |||||||
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Leda semen
(Lea 1883)
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Ward 1992 | ||||||
| recombined as Calorhadia semen | |||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris lisbonensis
Harris 1919
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Ward 1992 | ||||||
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Bivalvia
- Ostreida
- Ostreidae
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Cubitostrea sellaeformis
(Conrad 1832)
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Bivalvia
- Pectinida
- Plicatulidae
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Plicatula filamentosa
(Conrad 1833)
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Ward 1992 | ||||||
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Bivalvia
- Pectinida
- Anomiidae
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Anomia lisbonensis
Aldrich 1886
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Ward 1992 | ||||||
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Bivalvia
- Pholadida
- Corbulidae
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Caestocorbula fossata
|
Ward 1992 | ||||||
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Gastropoda
- Turritellidae
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Turritella nasuta
|
Ward 1992 | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Virginia | County: | Hanover |
| Coordinates: | 37.7° North, 77.1° West (view map) | ||||
| Paleocoordinates: | 37.6° North, 66.0° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 0 meters | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 2-3 | ||
| Key time interval: | Middle Eocene | ||
| Age range of interval: | 47.80000 - 37.71000 m.y. ago |
Stratigraphy
| Geological group: | Pamunkey | Formation: | Piney Point | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 15 feet thick | |||||
Lithology and environment
| Primary lithology: | fine,glauconitic,gray,green unlithified argillaceous sandstone | ||
| Includes fossils? | Y | ||
| Lithology description: Sand, olive-gray (5 Y 4/1), clayey, very glauconitic, very calcareous owing to shell fragments and microfossils | |||
| Environment: | coastal indet. | Tectonic setting: | passive margin |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils,microfossils |
Collection methods and comments
| Collection methods: | observed (not collected) |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | USGS |
Metadata
| Also known as: | USGS Locality 26412 | ||
| Database number: | 60664 | ||
| Authorizer: | A. Miller, A. Hendy | Enterer: | D. Buick, A. Hendy |
| Modifier: | A. Miller | Research group: | marine invertebrate |
| Created: | 2006-05-19 10:27:11 | Last modified: | 2006-09-10 12:40:50 |
| Access level: | the public | Released: | 2006-05-19 10:27:11 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 17420. | L. W. Ward. 1985. Stratigraphy and Characteristic Mollusks of the Pamunkey Group (Lower Tertiary) and the Old Church Formation of the Chesapeake Group-Virginia Coastal Plain. United States Geological Survey Professional Paper (1346)1-77 [A. Miller/D. Buick] |
Secondary references:
| 16985 | L. W. Ward. 1992. Molluscan biostratigraphy of the Miocene Middle Atlantic Coastal Plain of North America. Virginia Museum of Natural History 2 [A. Miller/A. Hendy] |