Station 2247b [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 cross-bedded, upper facies of 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, 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 78266: 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.
 Balanomorpha - Balanidae
Balanus sp. Da Costa 1778 barnacle
 Opisthobranchia - Cylichnidae
Acteocina candei d'Orbigny 1841 barrel-bubble
 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 - Triphoridae
Triphora sp. Blainville 1828 snail
 Sorbeoconcha - Cerithiopsidae
Seila adamsii Lea 1845 snail
 Sorbeoconcha - Epitoniidae
Epitonium sp. Bolten 1798 wentletrap
 Neogastropoda - Conidae
Conus marylandicus Green 1830 cone shell
 Neogastropoda - Terebridae
Terebra sp. Bruguière 1789 auger snail
 Neogastropoda - Drilliidae
"Drillia" eburnea Conrad 1862 snail
 Neogastropoda - Nassariidae
 Neogastropoda - Fasciolariidae
 Neogastropoda - Columbellidae
Mitrella sp., Anachis sp., "Mitrella communis" = Astyris communis
Mitrella sp. Risso 1826 snail
Anachis sp. Adams and Adams 1853 snail
"Mitrella communis" = Astyris communis Conrad 1862 snail
 Neogastropoda - Melongenidae
 Neogastropoda - Cystiscidae
Granulina ovuliformis d'Orbigny 1842 snail
 Neogastropoda - Muricidae
Ecphora quadricostata Conrad 1830 murex snail
 Neogastropoda - Volutidae
Scaphella sp. Swainson 1832 volute
 Neogastropoda - Marginellidae
"Marginella limatula" = Prunum limatulum, Marginella sp.
"Marginella limatula" = Prunum limatulum Conrad 1834 margin shell
Marginella sp. Lamarck 1799 margin shell
 Neogastropoda - Olividae
Olivella sp. Swainson 1831 olive snail
 Sorbeoconcha - Vermetidae
Serpulorbis granifera Say 1824 worm shell
 Sorbeoconcha - Vitrinellidae
Adeorbis sp. Wood 1848 snail
 Sorbeoconcha - Eulimidae
Strombiformis sp. da Costa 1778 snail
 Sorbeoconcha - Naticidae
"Lunatia herosa" = Euspira heros
"Lunatia herosa" = Euspira heros Say 1822 moon snail
 Sorbeoconcha - Turritellidae
"Turritella alticostata" = Turritella (Turritella) alticostata
"Turritella alticostata" = Turritella (Turritella) alticostata Conrad 1834 turret shell
 Trochoidea - Trochidae
Calliostoma sp. Swainson 1840 top snail
 Protobranchia - Yoldiidae
Yoldia laevis Say 1824 clam
 Pectinida - Pectinoidae
Chesapecten madisonius Say 1824 scallop
Carolinapecten eboreus Conrad 1833 scallop
 Pectinida - Plicatulidae
"Plicatula marginata" = Plicatula gibbosa
"Plicatula marginata" = Plicatula gibbosa Lamarck 1801 scallop
 Ostreida - Ostreidae
Conradostrea sculpturata Conrad 1840 oyster
 Arcida - Noetiidae
Noetia incile Say 1824 clam
 Arcida - Glycymerididae
 Mytilida - Mytilidae
 Hiatellida - Hiatellidae
Hiatella arctica Linnaeus 1767 clam
 Pandorida - Pandoridae
"Pandora arenosa" = Pandora (Pandorella) arenosa
"Pandora arenosa" = Pandora (Pandorella) arenosa Conrad 1834 clam
 Pholadomyida - Margaritariidae
Margaritaria abrupta Conrad 1832 clam
 Pholadida - Pholadidae
 Cardiida - Cardiidae
Chesacardium acutilaqueatum Conrad 1839 cockle
 Cardiida - Veneridae
"Pitar sayana" = Pitar morrhuanus Dall 1902 venus clam
Dosinia acetabulum Conrad 1832 venus clam
Mercenaria sp. Schumacher 1817 quahog
"Macrocallista reposta" = Macrocallista (Macrocallista) reposta Conrad 1834 venus clam
"Transenella carolinensis" = Transennella venus clam
Gemma magna Dall 1903 venus clam
SUBSPECIES: Gemma magna virgiana
 Cardiida - Ungulinidae
Diplodonta acclinis Conrad 1832 clam
 Cardiida - Mactridae
 Lucinida - Lucinidae
"Parvilucina crenulatus" = Parvilucina crenulata
"Parvilucina crenulatus" = Parvilucina crenulata Conrad 1840 clam
 Carditida - Astartidae
Astarte concentrica Conrad 1834 clam
 Carditida - Carditidae
Carditamera arata Conrad 1832 clam