Rock Landing - Yorktown Formation: Early/Lower Pliocene - Late/Upper Pliocene, North Carolina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Lepetellida - Fissurellidae
Diodora carolinensis
Gardner 1948
Gastropoda - Caecidae
Caecum stevensoni
Gardner 1948
Caecum regulare Carpenter 1858
Gardner 1948
recombined as Caecum (Caecum) regulare
Gastropoda - Neogastropoda - Columbellidae
Anachis (Costoanachis) avara (Say 1822)
Gardner 1948
Colombella avara
Subspecies: A. (C.) avara similis
Mitrella lunata (Say 1826)
Gardner 1948
recombined as Astyris lunata
Gastropoda - Neogastropoda - Nassariidae
Ilyanassa granifera (Conrad 1868)
Gardner 1948
Gastropoda - Neogastropoda - Muricidae
Eupleura caudata (Say 1822)
Gardner 1948
Subspecies: Eupleura caudata sulcidentata
Gastropoda - Cypraeidae
Cypraea (Cypraeorbis) carolinensis (Conrad 1841)
Gardner 1948
recombined as Akleistostoma carolinensis
Gastropoda - Eulimidae
Strombiformis bartschi
Gardner 1948
Bivalvia - Pectinida - Pectinidae
Chlamys (Aequipecten) eborea (Conrad 1833)
recombined as Carolinapecten eboreus
Bivalvia - Pectinida - Plicatulidae
Plicatula marginata Say 1824
synonym of Plicatula gibbosa
Bivalvia - Ostreida - Gryphaeidae
Chama striata Smith 1817
synonym of Nanogyra (Palaeogyra) virgula
Bivalvia - Arcida - Glycymerididae
Glycymeris duplinensis
Glycymeris americana (Defrance 1826)
Bivalvia - Cardiida - Cardiidae
Cerastoderma acutilaqueatum
Bivalvia - Cardiida - Semelidae
Abra aequalis (Say 1822)
Bivalvia - Cardiida - Donacidae
Donax emmonsi
Subspecies: D. emmonsi preaequilibrata
Bivalvia - Cardiida - Tellinidae
Tellina (Moerella) dupliniana (Dall 1900)
recombined as Moerella dupliniana
Bivalvia - Cardiida - Chamidae
Pseudochama corticosa
Bivalvia - Cardiida - Veneridae
Chione (Chione) grus (Holmes 1858)
recombined as Timoclea grus
Chione (Chione) cribraria (Conrad 1843)
recombined as Chione cribraria
Venus (Mercenaria) campechiensis (Gmelin 1791)
recombined as Mercenaria campechiensis
Subspecies V. (M.) campechiensis rileyi
Gemma cravenensis Gardner 1943
Gemma magna Dall 1903
Subspecies: Gemma magna virginiana and majorina
Bivalvia - Cardiida - Mactridae
Spisula (Hemimactra) modicella
original and current combination Hemimactra
Subspecies: S. (H.) modicella alta
Mulinia congesta (Conrad 1833)
Subspecies: Mulinia congesta magnoliana
Bivalvia - Cardiida - Kelliidae
Bornia triangula (Glenn 1904)
Bivalvia - Pholadida - Corbulidae
Corbula (Caryocorbula) conradi Gardner 1944
recombined as Caryocorbula conradi
Bivalvia - Lucinida - Lucinidae
Phacoides (Parvilucina) multilineatus (Conrad 1841)
recombined as Parvilucina multistriata
Bivalvia - Carditida - Crassatellidae
Crassinella lunulata (Conrad 1834)
Bivalvia - Carditida - Carditidae
Cardita arata (Conrad 1832)
recombined as Carditamera arata
Subspecies: Carditamera arata verdevilla
Glans (Pteromeris) perplana (Dall 1903)
recombined as Pteromeris perplana
Glans (Pleuromeris) tridentata (Say 1826)
recombined as Pleuromeris tridentata
Bivalvia - Carditida - Astartidae
Astarte (Ashtarotha) concentrica (Conrad 1834)
original and current combination Astarte concentrica
Astarte (Ashtarotha) undulata (Say 1824)
see common names

Geography
Country:United States State/province:North Carolina County:Craven
Coordinates: 35.5° North, 77.6° West (view map)
Paleocoordinates:35.6° North, 76.7° West
Basis of coordinate:based on nearby landmark
Geographic resolution:local area
Time
Period:Neogene Epoch:Pliocene
10 m.y. bin:Cenozoic 6
Key time interval:Early/Lower Pliocene - Late/Upper Pliocene
Age range of interval:5.33300 - 2.58000 m.y. ago
Stratigraphy
Formation:Yorktown
Stratigraphic resolution:formation
Stratigraphy comments: Local section name: Rock Landing. Basinal/regional section name: Craven.
No specific lithostratigraphic details or stratigraphic relationships provided in text beyond the following: The beds assigned to the Yorktown are grouped for convenience into units lettered A to F, A being the lowest and F being the highest. Collections from Greene county appear to derive from Unit E. Unit E presumably falls within zone 2 of the Yorktown Fm (Gardner 1943). How this equates to the lithostratigraphic members applied in Ward (1992) is unclear. While older literature assigns the Yorktown Formation to the Late Miocene, a late Early Pliocene-Late Pliocene age is assigned to the collection following Ward (1992). Furthemore as the collection is derived from the upper zone of the formation a Late Pliocene age is assigned.
Lithology and environment
Primary lithology:shelly/skeletal,gray unlithified sandstone
Includes fossils?Y
Lithology description: Gray sand containing many entire and broken shells.
Environment:coastal indet.
Geology comments: No geologic or paleoenvironmental data reported in text.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection,survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:USNM
Collection method comments: Collections reposited in USNM and USGS collections.
Taxonomic list comments:Exhaustive for Gastropoda, Bivalvia and Scaphopoda. Nomenclature is somewhat antiquated but provided to species resolution and authoritative.
Metadata
Database number:59330
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:L. Eccles Research group:GCP,marine invertebrate
Created:2006-03-26 11:17:43 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-03-26 11:17:43
Creative Commons license:CC BY
Reference information

Primary reference:
16984. J. A. Gardner. 1943. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina. Part 1. Pelecypoda. United States Geological Survey Professional Paper 199(A):1-178 [A. Miller/A. Hendy/S. Ávila]

Secondary references:

17048 J. A. Gardner. 1948. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina: Part 2. Scaphopoda and Gastropoda. United States Geological Survey Professional Paper 199(B):179-310 [A. Miller/A. Hendy]