Station 2245 [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: 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 in member.

• 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, but presumably siliciclastic. LITHIFICATION: Unknown.

Size class: macrofossils

Collected by Harris in 1890; reposited in the UNSM

Collection methods: surface (in situ),


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 78262: 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.
 Discinida - Disciniidae
Discinisca lugubris Conrad 1834
 Carditida - Carditidae
Cyclocardia granulata Say 1824 clam
 Carditida - Astartidae
Astarte concentrica Conrad 1834 clam
 Carditida - Crassatellidae
 Hiatellida - Hiatellidae
Hiatella arctica Linnaeus 1767 clam
 Solenida - Pharidae
Ensis ensiformis Conrad 1843 clam
 Cardiida - Veneridae
Dosinia acetabulum Conrad 1832 venus clam
Mercenaria sp. Schumacher 1817 quahog
Gouldia metastriata venus clam
[entered as Gouldia metastriatum]
Gemma magna Dall 1903 venus clam
SUBSPECIES: Gemma magna virginiana
 Cardiida - Donacidae
"Bornia triangulata" = Donax triangulata
"Bornia triangulata" = Donax triangulata Anderson and Martin 1914 clam
 Pholadida - Corbulidae
Corbula inaequalis Say 1824 clam
 Pholadida - Teredinidae
Kuphus fistula Lea 1843 clam
 Pandorida - Pandoridae
"Pandora crassidens" = Pandora (Clidiophora) crassidens
"Pandora crassidens" = Pandora (Clidiophora) crassidens Conrad 1838 clam
 Lucinida - Lucinidae
"Ctena speciosa" = Ctena (Ctena) speciosa Rogers and Rogers 1837 clam
Parvilucina crenulata Conrad 1840 clam
 Arcida - Noetiidae
Noetia incile Say 1824 clam
 Arcida - Arcidae
Striarca centenaria Say 1824 clam
 Pectinida - Plicatulidae
"Plicatula marginata" = Plicatula gibbosa
"Plicatula marginata" = Plicatula gibbosa Lamarck 1801 scallop
 Pectinida - Pectinoidae
Chesapecten madisonius Say 1824 scallop
 Ostreida - Ostreidae
Conradostrea sculpturata Conrad 1840 oyster
 Nuculanida - Nuculanidae
Nuculana acuta Conrad 1832 pointed nut clam
 Cerithioidea - Pleuroceridae
Fossarus lyra cerith snail
"Turritella alticostata" = Turritella (Turritella) alticostata Conrad 1834 turret shell
 Vanikoroidea - Eulimidae
Eulima sp. Risso 1826 snail
 Neotaenioglossa - Calyptraeidae
Crepidula fornicata Linnaeus 1758 slipper shell
Crepidula plana Say 1822 slipper shell
"Crucibulum constrictum" = Crucibulum (Dispotaea) constrictum Conrad 1842 slipper shell
"Crepidula spinosa" = Bostrycapulus aculeatus Gmelin 1791 slipper shell
 Sorbeoconcha - Cerithiopsidae
Seila adamsii Lea 1845 snail
 Sorbeoconcha - Vitrinellidae
Cyclostremiscus obliquestriatus snail
[entered as Cyclostremiscus obliquestriatus]
 Neogastropoda - Buccinidae
Ptychosalpinx laqueata true whelk
[entered as Ptychosalpinx laqueatum]
 Neogastropoda - Melongenidae
Busycon sp. Röding 1798 whelk
 Neogastropoda - Fasciolariidae
Fusinus exilis Dall 1890 snail
 Neogastropoda - Columbellidae
Anachis harrisii, "Mitrella communis" = Astyris communis
"Mitrella communis" = Astyris communis Conrad 1862 snail
 Neogastropoda - Nassariidae
Nassarius sp. Duméril 1806 snail
 Neogastropoda - Muricidae
Ecphora quadricostata Conrad 1830 murex snail
 Neogastropoda - Marginellidae
Marginella bella margin shell
 Neogastropoda - Drilliidae
Cymatosyrinx lunata Lea 1833 snail
 Neogastropoda - Cancellariidae
Trigonostoma sp. Blainville 1827 snail
 Sorbeoconcha - Vermetidae
 Sorbeoconcha - Naticidae
"Lunatia heros" = Euspira heros
"Lunatia heros" = Euspira heros Say 1822 moon snail
 Epitonioidea - Epitoniidae
Epitonium sp. Bolten 1798 wentletrap
 Balanomorpha - Balanidae
Balanus sp. Da Costa 1778 barnacle