Station 2251 [Moore House Mbr, Yorktown Fm] (Pliocene of the United States)

Where: Gloucester County, Virginia (37.2° N, 76.5° W: paleocoordinates 37.3° N, 75.8° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Moore House Member (Yorktown Formation), Late/Upper Pliocene (3.6 - 2.6 Ma)

• STRATIGRAPHIC RELATIONS: Probably from the Moore House Mbr of the Yorktown Fm, which unconformably overlies regionally the Morgarts Beach and Rushmere Mbrs of the Yorkown Fm, and is unconformably overlain regionally by the Chowan River Fm. AGE: Late Pliocene according to Ward (1993). STRATIGRAPHIC POSITION: From unknown position within the Moore House Mbr.

• bed-level stratigraphic resolution

Environment/lithology: coastal; siliciclastic sediments

• ENVIRONMENT: Not stated in text, but appears to be relatively shallow shelf depths.
• SPECIFIC LITHOLOGY: Unknown, probably siliciclastic. LITHIFICATION: Unknown.

Size class: macrofossils

Collected by Harris in 1890; reposited in the UNSM

Collection methods: surface (in situ),

• COLLECTOR: G.D. Harris, 1890. REPOSITORY: USNM.

Primary reference: L. W. Ward. 1993. The G.D Harris 1890 manuscript on the stratigraphy of Miocene and Pliocene beds at Yorktown, Virginia. Paleontological Research Institute Special Publication 20:1-118 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 78271: authorized by Austin Hendy, entered by Austin Hendy on 31.01.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Not exhaustive (as commented by Ward 1993, p. 3), but includes fairly comprehensive lists of characteristic gastropods and bivalves. NOMENCLATURE: Lists compiled by R. Arnold, based on identifications by Harris, with nomenclature subsequently revised by Ward to a modern standard, with species-resolution assignments.
Maxillopoda
 Sessilia - Balanidae
Balanus sp. Da Costa 1778 barnacle
Bivalvia
 Arcida - Arcidae
Striarca centenaria Say 1824 clam
 Arcida - Noetiidae
Noetia incile Say 1824 clam
 Ostreida - Ostreidae
Conradostrea sculpturata Conrad 1840 oyster
 Carditida - Astartidae
 Carditida - Crassatellidae
 Carditida - Carditidae
Cyclocardia granulata Say 1824 clam
 Pholadida - Teredinidae
Kuphus fistula Lea 1843 clam
 Cardiida - Veneridae
Gemma magna Dall 1903 venus clam
SUBSPECIES: G. magna virginiana
"Mercenaria tridacnoides" = Mercenaria campechiensis tridacnoides Lamarck 1818 quahog
Dosinia acetabulum Conrad 1832 venus clam
"Pitar sayana" = Pitar morrhuanus Dall 1902 venus clam
 Hiatellida - Hiatellidae
"Hiatella arctica" = Hiatella (Hiatella) arctica
"Hiatella arctica" = Hiatella (Hiatella) arctica Linnaeus 1767 clam
 Lucinida - Lucinidae
"Parvilucina crenulatus" = Parvilucina crenulata
"Parvilucina crenulatus" = Parvilucina crenulata Conrad 1840 clam
 Protobranchia - Yoldiidae
Yoldia laevis Say 1824 clam
Gastropoda
 Neogastropoda - Olividae
Olivella sp. Swainson 1831 olive snail
 Naticoidea - Naticidae
"Lunatia heros" = Euspira heros
"Lunatia heros" = Euspira heros Say 1822 moon snail
 Calyptraeoidea - Calyptraeidae
"Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum Conrad 1842 slipper shell
Crepidula plana Say 1822 slipper shell
Crepidula fornicata Linnaeus 1758 slipper shell
"Crepidula spinosa" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
 Sorbeoconcha - Turritellidae
"Turritella cf. alticostata" = Turritella (Turritella) alticostata
"Turritella cf. alticostata" = Turritella (Turritella) alticostata Conrad 1834 turret shell
Scaphopoda
 Dentaliida - Dentaliidae
Dentalium attenuatum Say 1824 tusk shell