Wilmington - Waccamaw Formation (Pleistocene of the United States)

Where: Columbus County, North Carolina (34.2° N, 77.9° W: paleocoordinates 34.3° N, 77.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Waccamaw Formation, Early/Lower Pleistocene (2.6 - 0.8 Ma)

• No lithostratigraphic details or stratigraphic relationships provided in text. AGE: Late Pliocene-Early Pleistocene, but here assigned to the Early Pleistocene following DuBar (1971).

• formation-level stratigraphic resolution

Environment/lithology: coastal; unlithified, shelly/skeletal, brown, gray, blue, silty sandstone

• No geologic or paleoenvironmental data reported in text.
• Fossiliferous sand with silt and clay, bluish-gray to tan, loosely consolidated

Size class: macrofossils

Reposited in the USNM

• Collections reposited in USNM and USGS collections.

Primary reference: J. A. Gardner. 1943. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina. Part 1. Pelecypoda. United States Geological Survey Professional Paper 199(A):1-178 [A. Miller/A. Hendy/S. Ávila]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 59318: authorized by Austin Hendy, entered by Austin Hendy on 25.03.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for Gastropoda, Bivalvia and Scaphopoda. Nomenclature is somewhat antiquated but provided to species resolution and authoritative.
Gastropoda
 Epitonioidea - Epitoniidae
 Sorbeoconcha - Littorinidae
"Littorina irrorata" = Littoraria irrorata
"Littorina irrorata" = Littoraria irrorata Say 1822 periwinkle
 Sorbeoconcha - Vitrinellidae
"Circulus" orbignyi snail
Listed as: "Circulus" (?supra-nitidus Wood subsp.) orbignyi
 Neogastropoda - Columbellidae
"Anachis (Costoanachis) avara" = Costoanachis avara
"Anachis (Costoanachis) avara" = Costoanachis avara Say 1822 snail
Subspecies: A. (Costoanachis) avara translirata
 Neogastropoda - Nassariidae
Ilyanassa wilmingtonensis Gardner 1943 snail
Ilyanassa isogramma Dall 1892 snail
Ilyanassa sexdentata Conrad 1843 snail
Ilyanassa scalaspira Conrad 1868 snail
 Neogastropoda - Volutidae
Aurinia obtusa Emmons 1858 volute
 Neogastropoda - Muricidae
 Sorbeoconcha - Vermetidae
Bivalvia
 Nuculida - Nuculidae
"Nucula proxima" = Nucula (Nucula) proxima
"Nucula proxima" = Nucula (Nucula) proxima Say 1820 Atlantic Nut Clam
 Pectinida - Pectinoidae
"Chlamys (Aequipecten) eborea" = Carolinapecten eboreus, "Pecten (Plagioctenium) gibbus" = Argopecten gibbus
"Chlamys (Aequipecten) eborea" = Carolinapecten eboreus Conrad 1833 scallop
"Pecten (Plagioctenium) gibbus" = Argopecten gibbus Linnaeus 1758 calico scallop
 Pectinida - Plicatulidae
"Plicatula marginata" = Plicatula gibbosa
"Plicatula marginata" = Plicatula gibbosa Lamarck 1801 scallop
 Ostreida - Gryphaeidae
"Chama striata" = Nanogyra (Palaeogyra) virgula Deshayes 1831 oyster
 Arcida - Arcidae
"Anadara lienosa" = Anadara (Rasia) lienosa
"Anadara lienosa" = Anadara (Rasia) lienosa Say 1832 ark
 Arcida - Glycymerididae
Glycymeris americana Defrance 1826 clam
 Cardiida - Cardiidae
 Cardiida - Semelidae
Semele subovata Say 1824 clam
Subspecies: Semele subovata alta
 Cardiida - Solecurtidae
"Tagelus gibbus" = Tagelus plebeius
"Tagelus gibbus" = Tagelus plebeius Lightfoot 1786 clam
Subspecies: T. gibbus carolinensis
 Cardiida - Tellinidae
"Tellina (Moerella) dupliniana" = Moerella dupliniana
"Tellina (Moerella) dupliniana" = Moerella dupliniana Dall 1900 tellin clam
 Cardiida - Veneridae
"Chione (Chione) grus" = Timoclea grus, "Chione (Chione) cribraria" = Chione cribraria, "Venus (Mercenaria) campechiensis" = Mercenaria campechiensis, "Callocardia (Agriopoma) sayana" = Pitar morrhuanus, Callocardia (Agriopoma) chioneformis, Petricola (Rupellaria) grinnelli, "Macrocallista reposta" = Macrocallista (Macrocallista) reposta, Gemma magna
"Chione (Chione) grus" = Timoclea grus Holmes 1858 venus clam
"Chione (Chione) cribraria" = Chione cribraria Conrad 1843 venus clam
"Venus (Mercenaria) campechiensis" = Mercenaria campechiensis Gmelin 1791 quahog
Subspecies V. (M.) campechiensis rileyi
"Callocardia (Agriopoma) sayana" = Pitar morrhuanus Dall 1902 venus clam
Callocardia (Agriopoma) chioneformis Gardner 1943 venus clam
Petricola (Rupellaria) grinnelli Olsson 1914 venus clam
"Macrocallista reposta" = Macrocallista (Macrocallista) reposta Conrad 1834 venus clam
Gemma magna Dall 1903 venus clam
 Cardiida - Mactridae
Mulinia congesta Conrad 1833 clam
Also: Mulinia congesta magnoliana
 Cardiida - Corbiculidae
 Cardiida - Montacutidae
 Poromyida - Verticordiidae
"Verticordia (Trigonulina) emmonsii" = Trigonulina
"Verticordia (Trigonulina) emmonsii" = Trigonulina clam
 Lucinida - Lucinidae
"Phacoides (Cardiolucina) trisulcatus" = Cavilinga trisulcata, "Phacoides (Parvilucina) multilineatus" = Parvilucina multistriata
"Phacoides (Cardiolucina) trisulcatus" = Cavilinga trisulcata Conrad 1841 clam
Subspecies: P. (C.) trisulcatus multistriatus
"Phacoides (Parvilucina) multilineatus" = Parvilucina multistriata Conrad 1841 clam
 Carditida - Crassatellidae
Crassinella lunulata Conrad 1834 clam
 Carditida - Carditidae
"Glans (Pteromeris) perplana" = Pteromeris perplana, "Glans (Pleuromeris) tridentata" = Pleuromeris tridentata
"Glans (Pteromeris) perplana" = Pteromeris perplana Dall 1903 clam
Also includes: G. (P.) perplana abbreviata
"Glans (Pleuromeris) tridentata" = Pleuromeris tridentata Say 1826 clam
Subspecies: G. (P.) tridentata decemcostata