Section 2 (Chowan River Fm) - Lee Creek Mine: Late/Upper Pliocene, North Carolina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla abrupta
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Gastropoda
- Lepetellida
- Fissurellidae
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Diodora nucula
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Gastropoda
- Areneidae
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Arene pergemma
(Gardner 1948)
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| synonym of Marevalvata tricarinata | ||||||||||
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Gastropoda
- Turritellidae
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Turritella perexilis
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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
- Tornidae
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Teinostoma gonigyrus
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Gastropoda
- Neogastropoda
- Olividae
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Olivella mutica
(Say 1822)
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana acuta
(Conrad 1832)
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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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Bivalvia
- Mytilida
- Crenellidae
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Crenella decussata
(Montagu 1808)
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Bivalvia
- Mytilida
- Mytilidae
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Modiolus cf. modiolus
(Linnaeus 1758)
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| recombined as Modiolus (Modiolus) modiolus | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Leptopecten auroraensis
Ward and Blackwelder 1987
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Bivalvia
- Pectinida
- Plicatulidae
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Plicatula marginata
Say 1824
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| synonym of Plicatula gibbosa | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Conradostrea lawrencei
Ward and Blackwelder 1987
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Bivalvia
- Arcida
- Arcidae
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Anadara aequicostata
(Conrad 1845)
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris americana
(Defrance 1826)
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Glycymeris sloani
Ward and Blackwelder 1987
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Bivalvia
- Cardiida
- Sportellidae
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Anisodonta carolina
Dall 1900
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| recombined as Basterotia carolina | ||||||||||
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Bivalvia
- Cardiida
- Semelidae
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Abra aequalis
(Say 1822)
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Semele bellastriata
(Conrad 1837)
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Bivalvia
- Cardiida
- Tellinidae
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Tellina agilis
Stimpson 1857
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| recombined as Angulus agilis | ||||||||||
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta acclinis
(Conrad 1832)
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Bivalvia
- Cardiida
- Veneridae
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Transennella stimpsoni
Dall 1902
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Gouldia metastriata
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| [entered as Gouldia metastriatum] | ||||||||||
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Bivalvia
- Pholadida
- Myidae
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Paramya subovata
(Conrad 1845)
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Bivalvia
- Pholadida
- Corbulidae
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Caryocorbula auroraensis
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| original and current combination Corbula (Caryocorbula) | ||||||||||
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Bivalvia
- Solenida
- Pharidae
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Ensis directus
(Conrad 1844)
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Bivalvia
- Thraciida
- Thraciidae
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Thracia brioni
Ward and Blackwelder 1987
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Bivalvia
- Carditida
- Crassatellidae
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Crassinella dupliniana
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| [entered as Crassinella dupliana] | ||||||||||
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Crassinella lunulata
(Conrad 1834)
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Bivalvia
- Carditida
- Carditidae
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Pteromeris perplana
(Dall 1903)
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| [entered as Pteromeris perlana] | ||||||||||
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Cyclocardia cf. granulata
(Say 1824)
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Pleuromeris decemcostata
Conrad 1867
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Pleuromeris auroraensis
Ward and Blackwelder 1987
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Bivalvia
- Carditida
- Astartidae
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Astarte concentrica
Conrad 1834
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | North Carolina |
| Coordinates: | 35.3° North, 76.6° West (view map) | ||
| Paleocoordinates: | 35.3° North, 76.0° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late/Upper Pliocene | ||
| Age range of interval: | 3.60000 - 2.58000 m.y. ago |
Stratigraphy
| Formation: | Chowan RIver | ||||
| Local section: | Section 2 | Local bed: | B | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Exposure of about 3 m of Chowan River Fm near base of section, immediately overlying unconformably the Yorktown Fm, and overlain by James City Fm. Basinal/Regional section name:Lee Creek Mine | |||||
Lithology and environment
| Primary lithology: | burrows,coarse,shelly/skeletal poorly lithified sandstone |
| Includes fossils? | Y |
| Lithology description: Olive gray coarse sand, bedded, burrowed, mottled, partly indurated with differential leaching. Fine shell in unleached portions. | |
| Environment: | transition zone/lower shoreface |
| Geology comments: Shallow shelf at a water depth of approximately 15 m, most of the beds being at a depth of 20 m or slightly greater. | |
Taphonomy
| Modes of preservation: | body,cast,original aragonite |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collections reposited in USGS and USNM | |
| Taxonomic list comments:Exhaustive for Mollusca and with good nomenclature. | |
Metadata
| Also known as: | B 25359 | ||
| Database number: | 58893 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | L. Eccles | Research group: | GCP,marine invertebrate |
| Created: | 2006-02-28 11:33:44 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-02-28 11:33:44 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 16700. | L. W. Ward and B.W. Blackwelder. 1987. Late Pliocene and Early Pleistocene Mollusca from the James City and Chowan River Formations at Lee Creek Mine. Smithsonian Contributions to Paleobiology 61:113-283 [A. Miller/A. Hendy/M. Uhen] |