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)