Langley Core, VA - 66.78-66.84 m (Eastover Fm): Miocene, Virginia
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium sp.
Linnaeus 1758
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Bivalvia
- Pectinida
- Pectinidae
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Pectinidae indet.
Wilkes 1810
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Bivalvia
- Pectinida
- Anomiidae
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? Anomia sp.
Linnaeus 1758
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Bivalvia
- Lucinida
- Lucinidae
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Parvilucina crenulata
(Conrad 1840)
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Bivalvia
- Pholadida
- Myidae
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Mya ? wilsoni
Ward 1992
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Bivalvia
- Cardiida
- Tellinidae
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Tellina sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Veneridae
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Dosinia sp.
Scopoli 1777
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Mercenaria sp.
Schumacher 1817
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Bivalvia
- Nuculida
- Nuculidae
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Nucula proxima
Say 1820
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| recombined as Nucula (Nucula) proxima | ||||||||||
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Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla sp.
Risso 1826
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Gastropoda
- Turritellidae
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Turritella plebeia
Say 1824
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| recombined as Mariacolpus plebeia | ||||||||||
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Gastropoda
- Naticidae
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Lunatia heros
(Say 1822)
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| recombined as Euspira heros | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Mitrella communis
(Conrad 1862)
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| recombined as Astyris communis | ||||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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"Scalaspira" strumosa
(Conrad 1832)
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius sp.
Duméril 1806
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Nassarius marylandica
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Nassarius peralta
(Conrad 1868)
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Gastropoda
- Neogastropoda
- Muricidae
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Eupleura caudata
(Say 1822)
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Ecphora gardnerae
(Wilson 1987)
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| Subspecies: E. gardnerae whiteoakensis | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Virginia | County: | Hampton |
| Coordinates: | 37.1° North, 76.4° West (view map) | ||||
| Paleocoordinates: | 37.3° North, 73.3° West | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Neogene | Epoch: | Miocene |
| 10 m.y. bin: | Cenozoic 5-6 | ||
| Key time interval: | Miocene | ||
| Age range of interval: | 23.03000 - 5.33300 m.y. ago |
Stratigraphy
| Formation: | Eastover | ||||
| Local section: | Langley Core | Local bed: | 66.78 m | ||
| Local order: | bottom to top | ||||
| Regional section: | Chesapeake Bay | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: SOURCE: collecton from 66.78-66.84 m (219.1-219.3 ft) in core. STRATIGRAPHIC RELATIONS: Overlies the St Mary's Fm (early Late Miocene), and in turn is overlain by the Yorktown Fm. Both contacts are unconformable. The height of contact between Pliocene Yorktown Fm and the Eastover Fm is 23.3 m (76.3 ft). BIOSTRATIGRAPHY: NN 11 calcareous nannofossil zone, D9-D10 dinoflagellate zone and M7-M8 molluscan zone. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal unlithified argillaceous,silty,sandy sandstone |
| Includes fossils? | Y |
| Lithology description: GENERAL LITHOLOGY: Shelly, sandy basal lag and consists of clayey, silty sands. | |
| Environment: | coastal indet. |
| Geology comments: DEPTH: relatively shallow, marine shelf with diverse substrates. SALINITY: no specific data reported, apparently normal marine conditions. THERMAL TOLERANCES: subtropical-warm-temperate. PAELOBIOGEOGRAPHY: no specific data reported. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | core,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: SOURCE: occurrences of large recognizable species and any molluscan remains were noted. Fossiliferous samples were collected at selected intervals for precessing and further examination. Samples were washed, the fraction >850 um was retained, and molluscan fauna specimens recovered were sorted and identified. Generic assignments for extant groups were updated on the basis of Turgeon et al. (1998). COLLECTORS: Collected by NASA-USGS. REPOSITORIES: presumably reposited in USGS and USNM collections. | |
| Taxonomic list comments:COVERAGE: Not exhaustive, but detailed considering limited material available from core. IDENTIFIED: presumably identified by L. Wingard (USGS). NOMENCLATURE: appears to be fairly modern. | |
Metadata
| Also known as: | 219.1-219.3 ft | ||
| Database number: | 61276 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2006-06-04 14:13:01 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-06-04 14:13:01 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 17631. | L. E. Edwards, J. A. Barron, D. Bukry, L.M. Bybell, T.M. Cronin, C.W. Poag, R.E. Weems and G.L. Wingard. 2005. Paleontology of the Upper Eocene to Quaternary Post Impact Section in the USGS-NASA Langley Core, Hampton Virginia. United States Geological Survey Professional Paper 1688:1-71 [A. Miller/A. Hendy/R. McClees-Funinan] |