Cronly - Waccamaw Formation (Pleistocene of the United States)

Where: Columbus County, North Carolina (34.3° N, 78.2° W: paleocoordinates 34.4° N, 77.8° W)

• coordinate based on nearby landmark

• outcrop-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 59315: 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
 Neogastropoda - Columbellidae
 Sorbeoconcha - Cerithiopsidae
Retilaskeya bicolor2 Adams 1845 snail
Subspecies: C. (L.) emersonii persubulata
 Trochoidea - Areneidae
"Liotia (Arene) pergemma" = Marevalvata tricarinata1
"Liotia (Arene) pergemma" = Marevalvata tricarinata1 Stearns 1872 snail
Bivalvia
 Cardiida - Cardiidae
 Cardiida - Tellinidae
"Tellina (Moerella) dupliniana" = Moerella dupliniana
"Tellina (Moerella) dupliniana" = Moerella dupliniana Dall 1900 tellin clam
 Cardiida - Donacidae
Donax emmonsi clam
Subspecies: D. emmonsi preaequilibrata
 Cardiida - Semelidae
Abra aequalis Say 1822 abra
Semele bellastriata Conrad 1837 clam
 Cardiida - Veneridae
"Chione (Chione) cribraria" = Chione cribraria, Gemma magna
"Chione (Chione) cribraria" = Chione cribraria Conrad 1843 venus clam
Gemma magna Dall 1903 venus clam
Subspecies: G. magna insulcata
 Cardiida - Mactridae
"Spisula solidissima" = Hemimactra solidissima2
"Spisula solidissima" = Hemimactra solidissima2 Dilwyn 1817 clam
 Pandorida - Pandoridae
"Pandora (Kennerlia) naviculoides" = Pandora (Pandorella)
"Pandora (Kennerlia) naviculoides" = Pandora (Pandorella) clam
 Lucinida - Lucinidae
"Phacoides (Parvilucina) multilineatus" = Parvilucina multistriata
"Phacoides (Parvilucina) multilineatus" = Parvilucina multistriata Conrad 1841 clam
 Carditida - Astartidae
"Astarte (Ashtarotha) concentrica" = Astarte concentrica
"Astarte (Ashtarotha) concentrica" = Astarte concentrica Conrad 1834 clam
 Carditida - Carditidae
"Glans (Pteromeris) perplana" = Pteromeris perplana
"Glans (Pteromeris) perplana" = Pteromeris perplana Dall 1903 clam
 Carditida - Crassatellidae
Crassinella lunulata Conrad 1834 clam
 Arcida - Glycymerididae
Glycymeris americana Defrance 1826 clam
 Arcida - Arcidae
"Anadara lienosa" = Anadara (Rasia) lienosa
"Anadara lienosa" = Anadara (Rasia) lienosa Say 1832 ark
 Pectinida - Anomiidae
"Ostrea waccamawensis" = Pododesmus waccamawensis
"Ostrea waccamawensis" = Pododesmus waccamawensis Gardner 1943 scallop