Station 2248 [Moore House Mbr, Yorktown Fm] (Pliocene of the United States)

Where: York 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 multiple facies of the Moore House Mbr.

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; shelly/skeletal, silty sandstone

• ENVIRONMENT: Not stated in text, but appears to be relatively shallow shelf depths.
• SPECIFIC LITHOLOGY: From two facies, a shelly bed, and very fine, silty sand. 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 78268: 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.
Gastropoda
 Neotaenioglossa - Calyptraeidae
"Crepidula spinosa" = Bostrycapulus aculeatus, "Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum
"Crepidula spinosa" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
"Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum Conrad 1842 slipper shell
 Sorbeoconcha - Naticidae
Lunatia interna moon snail
Sinum fragilis Conrad 1830 moon snail
"Lunatia heros" = Euspira heros Say 1822 moon snail
 Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806 snail
 Neogastropoda - Melongenidae
 Neogastropoda - Fasciolariidae
 Neogastropoda - Volutidae
Scaphella sp. Swainson 1832 volute
"Scaphella obtusa" = Aurinia (Volutifusus) obtusa Emmons 1858 volute
 Neogastropoda - Muricidae
Ecphora quadricostata Conrad 1830 murex snail
 Sorbeoconcha - Vermetidae
Serpulorbis granifera Say 1824 worm shell
 Cerithioidea - Turritellidae
"Turritella alticostata" = Turritella (Turritella) alticostata
"Turritella alticostata" = Turritella (Turritella) alticostata Conrad 1834 turret shell
Bivalvia
 Nuculanida - Yoldiidae
Yoldia laevis Say 1824 clam
 Pectinida - Pectinoidae
Chesapecten madisonius Say 1824 scallop
 Pholadida - Teredinidae
Kuphus fistula Lea 1843 clam
 Cardiida - Veneridae
Dosinia acetabulum Conrad 1832 venus clam
 Carditida - Carditidae
Cyclocardia granulata Say 1824 clam