Also known as 21.3-21.5 ft
Where: Hampton County, Virginia (37.1° N, 76.4° W: paleocoordinates 37.1° N, 75.7° W)
• coordinate stated in text
• small collection-level geographic resolution
When: Yorktown Formation, Late/Upper Pliocene (3.6 - 2.6 Ma)
• SOURCE: collecton from 6.49-6.55 m (21.3-21.5 ft) in core. STRATIGRAPHIC RELATIONS: Overlies unconformably with a heavy burrowed contact, the Late Miocene Eastover Fm as 23.3 m (76.3 ft). The Yorktown is further overlain by 2.2. m (7.2 ft of Quaternary gravel and sand of the Lynn Haven Mr of the Tabb Fm. The Chown River and Bacons Castles Fm's are not recognized in the core. BIOSTRATIGRAPHY: NN 14-17 calcareous nannofossil zone and M5-M6 molluscan zone = Early-Late Pliocene. A Late Pliocene age is assigned as the collection is derived from the very top of the section, i.e. upper Yorktown Fm.
• bed-level stratigraphic resolution
Environment/lithology: coastal; unlithified, shelly/skeletal, silty, calcareous sandstone
Size class: macrofossils
Reposited in the USNM
Collection methods: core,
• SOURCE: occurrences of large recognizable species and any molluscan remains were noted. Fossiliferous samples were collected at selected intervals for precessing and further examination. Samples were washed, the fraction >850 um was retained, and molluscan fauna specimens recovered were sorted and identified. Generic assignments for extant groups were updated on the basis of Turgeon et al. (1998). COLLECTORS: Collected by NASA-USGS. REPOSITORIES: presumably reposited in USGS and USNM collections.
Primary reference: L. E. Edwards, J. A. Barron, D. Bukry, L.M. Bybell, T.M. Cronin, C.W. Poag, R.E. Weems and G.L. Wingard. 2005. Paleontology of the Upper Eocene to Quaternary Post Impact Section in the USGS-NASA Langley Core, Hampton Virginia. United States Geological Survey Professional Paper 1688:1-71 [A. Miller/A. Hendy/R. McClees-Funinan]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 61293: authorized by Austin Hendy, entered by Austin Hendy on 04.06.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Bivalvia | |
"Nucula proxima" = Nucula (Nucula) proxima
"Nucula proxima" = Nucula (Nucula) proxima Say 1820 Atlantic Nut Clam | |
Yoldia laevis Say 1824 clam | |
Nuculana acuta Conrad 1832 pointed nut clam | |
Solen sp. Linnaeus 1758 clam | |
Chione cribraria Conrad 1843 venus clam
? Amiantis sp. Carpenter 1863 venus clam
"Pitar sayana" = Pitar morrhuanus Dall 1902 venus clam | |
Tellina sp. Linnaeus 1758 tellin clam | |
Parvilucina crenulata Conrad 1840 clam | |
Astarte concentrica, "Astarte undulata" = Astarte (Ashtarotha) undulata
Astarte concentrica Conrad 1834 clam
"Astarte undulata" = Astarte (Ashtarotha) undulata Say 1824 clam | |
Pleuromeris sp. Conrad 1867 clam | |
Crassinella lunulata Conrad 1834 clam | |
? Anomia sp. Linnaeus 1758 jingle | |
"Glycymeris pectinata" = Tucetona pectinata
"Glycymeris pectinata" = Tucetona pectinata Gmelin 1791 clam | |
Gastropoda | |
Acteocina candei d'Orbigny 1841 barrel-bubble | |
Odostomia sp. Fleming 1817 snail
Turbonilla sp. Risso 1826 snail | |
? Terebra sp. Bruguière 1789 auger snail | |
Olivella sp. Swainson 1831 olive snail | |
? Nassarius sp. Duméril 1806 snail | |
Tectonatica pusilla Say 1822 moon snail | |
Eulima dalli snail | |
"Turritella alticostata" = Turritella (Turritella) alticostata
"Turritella alticostata" = Turritella (Turritella) alticostata Conrad 1834 turret shell | |
Scaphopoda | |
Cadulus sp. Philippi 1844 tusk shell | |
Dentalium sp. Linnaeus 1758 tusk shell |