Lake Waccamaw - Waccamaw Formation (Pleistocene of the United States)

Where: Columbus County, North Carolina (34.3° N, 78.5° W: paleocoordinates 34.3° N, 78.1° 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 59317: 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
 Trochoidea - Areneidae
"Liotia (Arene) pergemma" = Marevalvata tricarinata
"Liotia (Arene) pergemma" = Marevalvata tricarinata Stearns 1872 snail
 Neogastropoda - Nassariidae
Ilyanassa irrorata Conrad 1863 snail
 Neogastropoda - Columbellidae
"Mitrella lunata" = Astyris lunata, "Anachis (Costoanachis) avara" = Costoanachis avara
"Mitrella lunata" = Astyris lunata Say 1826 snail
"Anachis (Costoanachis) avara" = Costoanachis avara Say 1822 snail
Subspecies: A. (Costoanachis) avara translirata and similis
 Neogastropoda - Muricidae
 Sorbeoconcha - Littorinidae
"Littorina irrorata" = Littoraria irrorata
"Littorina irrorata" = Littoraria irrorata Say 1822 periwinkle
Bivalvia
 Arcida - Glycymerididae
Glycymeris americana Defrance 1826 clam
 Pectinida - Plicatulidae
"Plicatula marginata" = Plicatula gibbosa
"Plicatula marginata" = Plicatula gibbosa Lamarck 1801 scallop
 Pectinida - Pectinoidae
"Pecten (Plagioctenium) gibbus" = Argopecten gibbus, Amusium mortoni
"Pecten (Plagioctenium) gibbus" = Argopecten gibbus Linnaeus 1758 calico scallop
Amusium mortoni Ravenel 1844 scallop
 Ostreida - Gryphaeidae
"Chama striata" = Nanogyra (Palaeogyra) virgula Deshayes 1831 oyster
 Pholadida - Pholadidae
 Pholadida - Myidae
"Mya arenaria" = Mya (Arenomya) arenaria
"Mya arenaria" = Mya (Arenomya) arenaria Linnaeus 1758 softshell clam
 Cardiida - Kelliidae
Bornia triangula Glenn 1904 clam
 Cardiida - Erycinidae
 Cardiida - Corbiculidae
 Cardiida - Veneridae
Gemma magna, "Venus (Mercenaria) campechiensis" = Mercenaria campechiensis, "Chione (Chione) cribraria" = Chione cribraria
Gemma magna Dall 1903 venus clam
"Venus (Mercenaria) campechiensis" = Mercenaria campechiensis Gmelin 1791 quahog
Subspecies V. (M.) campechiensis rileyi
"Chione (Chione) cribraria" = Chione cribraria Conrad 1843 venus clam
 Cardiida - Mactridae
Mulinia congesta Conrad 1833 clam
 Cardiida - Cardiidae
 Cardiida - Donacidae
Donax fossor Say 1822 clam
 Cardiida - Tellinidae
"Tellina (Moerella) dupliniana" = Moerella dupliniana
"Tellina (Moerella) dupliniana" = Moerella dupliniana Dall 1900 tellin clam
 Cardiida - Semelidae
 Carditida - Astartidae
"Astarte (Ashtarotha) concentrica" = Astarte concentrica
"Astarte (Ashtarotha) concentrica" = Astarte concentrica Conrad 1834 clam
Also includes: A. (A.) concentrica conradi
 Carditida - Carditidae
"Glans (Pleuromeris) tridentata" = Pleuromeris tridentata, "Glans (Pteromeris) perplana" = Pteromeris perplana
"Glans (Pleuromeris) tridentata" = Pleuromeris tridentata Say 1826 clam
Also includes: G. (P.) tridentata decemcostata
"Glans (Pteromeris) perplana" = Pteromeris perplana Dall 1903 clam
Also includes: G. (P.) perplana abbreviata
 Nuculida - Nuculidae
"Nucula proxima" = Nucula (Nucula) proxima
"Nucula proxima" = Nucula (Nucula) proxima Say 1820 Atlantic Nut Clam