Section 4 (Chowan River Fm) - Lee Creek Mine (Pliocene of the United States)

Also known as B 25363

Where: North Carolina (35.3° N, 76.6° W: paleocoordinates 35.3° N, 76.0° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Chowan RIver Formation, Late/Upper Pliocene (3.6 - 2.6 Ma)

• Exposure of less than 1 m of Chowan River Fm at base of section, overlain by James City Fm. Basinal/regional section name: Lee Creek Mine

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; poorly lithified, burrowed, coarse-grained, shelly/skeletal sandstone

• Shallow shelf at a water depth of approximately 15 m, most of the beds being at a depth of 20 m or slightly greater.
• Olive gray coarse sand, bedded, burrowed, mottled, partly indurated with differential leaching. Fine shell in unleached portions.

Size class: macrofossils

Preservation: cast, original aragonite

Reposited in the USNM

• Collections reposited in USGS and USNM

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 58894: authorized by Austin Hendy, entered by Austin Hendy on 28.02.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Mollusca and with good nomenclature.
Gastropoda
 Cerithioidea - Turritellidae
Vermicularia spirata Philippi 1836 turret shell
 Sorbeoconcha - Cerithiopsidae
"Seila adamsi" = Seila adamsii
"Seila adamsi" = Seila adamsii Lea 1845 snail
 Sorbeoconcha - Vermetidae
Serpulorbis granifera Say 1824 worm shell
 Neogastropoda - Olividae
Olivella mutica Say 1822 olive snail
 Neogastropoda - Marginellidae
Prunum limatulum Conrad 1834 margin shell
 Sorbeoconcha - Tornidae
Teinostoma beaufortensis Ward and Blackwelder 1987 snail
 Sorbeoconcha - Caecidae
 Heterostropha - Pyramidellidae
 Trochoidea - Areneidae
"Arene pergemma" = Marevalvata tricarinata
"Arene pergemma" = Marevalvata tricarinata Stearns 1872 snail
 Trochoidea - Liotiidae
 Lepetellida - Fissurellidae
Bivalvia
 Nuculanida - Nuculanidae
Nuculana acuta Conrad 1832 pointed nut clam
 Nuculida - Nuculidae
"Nucula proxima" = Nucula (Nucula) proxima
"Nucula proxima" = Nucula (Nucula) proxima Say 1820 Atlantic Nut Clam
 Pandorida - Pandoridae
 Thraciida - Periplomatidae
Cochlodesma emmonsii Ward and Blackwelder 1987 clam
 Solenida - Pharidae
Ensis directus Conrad 1844 clam
 Pholadida - Corbulidae
 Cardiida - Veneridae
Gouldia metastriata venus clam
[entered as Gouldia metastriatum]
 Cardiida - Anatinellidae
Raeta plicatella Lamarck 1818 clam
 Cardiida - Donacidae
Donax fossor Say 1822 clam
 Cardiida - Semelidae
Semele bellastriata Conrad 1837 clam
 Cardiida - Cardiidae
 Carditida - Crassatellidae
Crassinella dupliniana clam
[entered as Crassinella dupliana]
Crassinella lunulata Conrad 1834 clam
 Carditida - Carditidae
Pleuromeris auroraensis Ward and Blackwelder 1987 clam
Pleuromeris decemcostata Conrad 1867 clam
 Carditida - Astartidae
Astarte concentrica Conrad 1834 clam
 Pectinida - Plicatulidae
"Plicatula marginata" = Plicatula gibbosa
"Plicatula marginata" = Plicatula gibbosa Lamarck 1801 scallop
 Ostreida - Ostreidae
Conradostrea lawrencei Ward and Blackwelder 1987 oyster
 Arcida - Arcidae
Anadara aequicostata Conrad 1845 ark
 Arcida - Glycymerididae
Glycymeris sloani Ward and Blackwelder 1987 clam
Glycymeris americana Defrance 1826 clam