Sample# 17e - Lower Norfolk Mbr, Acredale Fm (Pleistocene of the United States)

Where: Virginia (36.8° N, 76.2° W: paleocoordinates 36.8° N, 76.2° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Norfolk Member (Acredale Formation), Late/Upper Pleistocene (0.1 - 0.0 Ma)

• Collection from 0.64 m above base of section, from 2.29 m thick sandstone. Upper part of Norfolk Mbr. Late Pleistocene in age, presumably from stage 5 (70-125,000 ybp).

• bed-level stratigraphic resolution

Environment/lithology: marginal marine; unlithified, shelly/skeletal, gray, blue, silty sandstone

• "transitional marine" in stratigraphic column; "estuarine, but more likely bay or harbour" in text.
• Silty sand, gray to blue-gray, fine to medium; fossiliferous.

Size class: macrofossils

Reposited in the UNSM

Collection methods: bulk,

• Collected by authors. Collections reside in the USNM

Primary reference: R. S. Spencer and L.D. Campbell. 1987. The fauna and paleoecology of the Late Pleistocene marine sediments of southeastern Virginia. Bulletins of American Paleontology 92(327):1-124 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 57703: authorized by Austin Hendy, entered by Austin Hendy on 19.12.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive and authoritative. Includes Foraminifera, Porifera, Coelenterata, Bryozoa, Annelida, in addition to Mollusca.
 Chilostomellacea - Gavelinellidae
 Rotaliacea - Elphidiidae
 Nonionacea - Nonionidae
 Nodosariacea - Polymorphinidae
Globulina sp. d'Orbigny 1839
 Nodosariacea - Nodosariidae
Lagena sp. Walker and Boys 1784
 Spionida - Spionidae
Polydora sp. Bosk 1801
 Serpulimorpha -
 Arcida - Arcidae
"Anadara ovalis" = Lunarca ovalis
"Anadara ovalis" = Lunarca ovalis Bruguiere 1789 ark
 Ostreida - Ostreidae
Crassostrea virginica Gmelin 1791 oyster
 Carditida - Crassatellidae
Crassinella lunulata Conrad 1834 clam
 Pholadida - Corbulidae
"Corbula contracta" = Caryocorbula contracta
"Corbula contracta" = Caryocorbula contracta Say 1822 clam
 Pholadida - Pholadidae
Cyrtopleura costata Linnaeus 1758 clam
 Cardiida - Kelliidae
 Cardiida - Anatinellidae
Raeta plicatella Lamarck 1818 clam
 Cardiida - Mactridae
Mulinia lateralis Say 1822 clam
Rangia cuneata Sowerby 1831 clam
 Cardiida - Veneridae
Mercenaria mercenaria, Dosinia discus, "Pitar morrhuana" = Pitar morrhuanus, "Petricola pholadiformis" = Petricolaria pholadiformis
Mercenaria mercenaria Linnaeus 1758 quahog
Dosinia discus Reeve 1850 venus clam
"Pitar morrhuana" = Pitar morrhuanus Dall 1902 venus clam
"Petricola pholadiformis" = Petricolaria pholadiformis Lamarck 1818 venus clam
 Cardiida - Solecurtidae
Tagelus plebeius Lightfoot 1786 clam
 Cardiida - Cardiidae
Dinocardium robustum Lightfoot 1786 cockle
 Nuculida - Nuculidae
"Nucula proxima" = Nucula (Nucula) proxima
"Nucula proxima" = Nucula (Nucula) proxima Say 1820 Atlantic Nut Clam
 Protobranchia - Nuculanidae
Nuculana acuta Conrad 1832 pointed nut clam
 Cheilostomata - Microporellidae
 Cheilostomata - Schizoporellidae
 Cheilostomata - Bitectiporidae
 Cheilostomata - Cupuladriidae
Cupuladria biporosa Canu and Bassler 1923
Discoporella umbellata Defrance 1823
Subspecies: Discoporella umbellata depressa
 Cheilostomata - Electridae
 Cheilostomata - Electrinidae
 Miliolida - Miliolidae