USGS Loc. 25121 - Lone Star Cement pit [Yorktown Fm] (Pliocene of the United States)

Also known as Kier Loc. 4

Where: Nasemond County, Virginia (36.9° N, 76.6° W)

• Paleocoordinates: 37.4° N, 74.8° W (Wright 2013)

• outcrop-level geographic resolution

When: Yorktown Formation, Zanclean (5.3 - 3.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Yorktown Formation. No other lithostratigraphic relationships are reported. AGE: Late Miocene in text; reassigned to Zanclean by enterer. STRATIGRAPHIC POSITION: Unknown position within local section; in-situ.

• bed-level stratigraphic resolution

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

• SPECIFIC LITHOLOGY: Silty sand. LITHIFICATION: Unlithified.

Size class: macrofossils

Collected by Blow; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTORS: W.C. Blow, presumably (?). REPOSITORY: USNM (ex USGS).

Primary reference: P. M. Kier. 1972. Upper Miocene Echinoids from the Yorktown Formation of Virginia and their environmental significance. Smithsonian Contributions to Paleobiology 13 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 155892: authorized by Austin Hendy, entered by Austin Hendy on 03.05.2014

Creative Commons license: CC0 (CC0)

Taxonomic list

• COVERAGE: Limited to echinoids, but presumably molluscs are also present. NOMENCLATURE: Authoritative publication, with moderately modern nomenclature, and species-resolution identifications.
Echinoidea
 Spatangoida - Loveniidae
Echinocardium orthonotum Conrad 1843 heart urchin
 Clypeasteroida - Mellitidae
Mellita aclinus sand dollar
 Camarodonta - Echinidae
Psammechinus philanthropus Conrad 1843 sea urchin