Yorktown Formation (Pliocene of the United States)

Where: Virginia (37.2° N, 76.5° W: paleocoordinates 37.3° N, 75.6° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Yorktown Formation, Pliocene (5.3 - 2.6 Ma)

• LITHOSTRATIGRAPHY: From the Yorktown Fm, for which lithostratigraphic relationships are not discussed. AGE: A Pliocene age is assigned to the collection following Ward (1992). STRATIGRAPHIC POSITION: Composite list for formation.

• formation-level stratigraphic resolution

Environment/lithology: coastal; siliciclastic sediments

• LITHOLOGY: Unknown. LITHIFICATION: Unlithified, based on figured specimens.

Size class: macrofossils

Collected by Petuch

Collection methods: surface (in situ),

• COLLECTOR: Petuch. REPOSITORY: Not stated in text.

Primary reference: E. J. Petuch. 1988. Neogene History of Tropical American Mollusks 1-217 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96535: authorized by Austin Hendy, entered by Austin Hendy on 11.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxa miscellaneously mentioned in text. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Gastropoda
 Neogastropoda - Buccinidae
"Celatoconus nux" = Pisania (Celatoconus)
"Celatoconus nux" = Pisania (Celatoconus) true whelk
 Neogastropoda - Melongenidae
Busycotypus incile, "Busycon maximum" = Busycon, "Sinistrofulgur contrarium" = Busycon
"Busycon maximum" = Busycon whelk
"Sinistrofulgur contrarium" = Busycon whelk
 Neogastropoda - Nassariidae
"Paranassa arata" = Ilyanassa arata, Calophos plicatile
"Paranassa arata" = Ilyanassa arata Say 1824 snail
 Neogastropoda - Muricidae
Vokesinotus lepidotus Dall 1890 murex snail
Urosalpinx phrikina murex snail
Ecphora quadricostata Conrad 1830 murex snail
 Neogastropoda - Conidae
"Contraconus adversarius" = Conus (Contraconus) adversarius
"Contraconus adversarius" = Conus (Contraconus) adversarius Conrad 1840 cone shell