Johnson Point - Sample 2 (James City Fm): Early/Lower Pleistocene, North Carolina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Spathiopora sp.
C category
Anthozoa - Scleractinia - Rhizangiidae
Septastrea sp. d'Orbigny 1849
R category
Demospongiae - Clavulina - Clionaidae
? Cliona sp.
C category
Gymnolaemata - Cheilostomata - Electridae
Electra sp. Lamouroux 1816
C category
Gymnolaemata - Cheilostomata - Cribrilinidae
Cribrilina punctata
C category
Gymnolaemata - Cheilostomata - Bryocryptellidae
Cyclocolposa perforata
A category
Gymnolaemata - Cheilostomata - Bitectiporidae
Hippoporina cf. pertusa (Esper 1796)
C category
Gymnolaemata - Ctenostomata - Terebriporidae
Terebripora sp.
R category
Polychaeta - Spionida - Spionidae
Polydora sp. Bosk 1801
C category
Polyplacophora - Neoloricata - Chaetopleuridae
Chaetopleura sp. Shuttleworth 1853
1 individual
Bivalvia - Arcida - Noetiidae
Noetia limula
1 individual
Bivalvia - Arcida - Arcidae
Anadara aequicostata (Conrad 1845)
28 individuals
Bivalvia - Ostreida - Ostreidae
Ostrea sculpturata Conrad 1840
55 individuals
recombined as Conradostrea sculpturata
Bivalvia - Pectinida - Pectinidae
Argopecten eboreus (Conrad 1833)
1 individual
recombined as Carolinapecten eboreus
Bivalvia - Lucinida - Lucinidae
Parvilucina multilineata (Conrad 1841)
1 individual
recombined as Parvilucina multistriata
Bivalvia - Pholadida - Myidae
Sphenia sp. Turton 1822
6 individuals
Bivalvia - Pholadida - Corbulidae
Corbula conradi Gardner 1944
1 individual
recombined as Caryocorbula conradi
Bivalvia - Cardiida - Sportellidae
Ensitellops protexta
1 individual
Bivalvia - Cardiida - Semelidae
Cumingia tellinoides (Conrad 1831)
3 individuals
Abra aequalis (Say 1822)
6 individuals
Bivalvia - Cardiida - Veneridae
Mercenaria permagna (Conrad 1838)
4 individuals
Bivalvia - Cardiida - Mactridae
Mulinia lateralis (Say 1822)
2 individuals
Bivalvia - Hiatellida - Hiatellidae
Hiatella arctica (Linnaeus 1767)
1 individual
Bivalvia - Nuculanida - Nuculanidae
Nuculana acuta (Conrad 1832)
62 individuals
Bivalvia - Nuculanida - Yoldiidae
Yoldia limatula (Say 1831)
1 individual
Bivalvia - Nuculida - Nuculidae
Nucula proxima Say 1820
7 individuals
recombined as Nucula (Nucula) proxima
Gastropoda - Heterostropha - Pyramidellidae
Boonea impressa (Say 1822)
2 individuals
Boonea seminuda (Adams 1839)
434 individuals
Turbonilla (Chemnitzia) sp. (d'Orbigny 1840)
3 individuals
original and current combination Chemnitzia
Turbonilla (Pyrgiscus) informal sp. A (Philippi 1841)
4 individuals
Turbonilla (Pyrgiscus) informal sp. B (Philippi 1841)
1 individual
Gastropoda - Epitoniidae
Epitonium apiculatum
2 individuals
Gastropoda - Eulimidae
? Melanella sp. Bowdich 1822
1 individual
Gastropoda - Naticidae
Polinices sp. Monfort 1810
3 individuals
Gastropoda - Neogastropoda - Columbellidae
Anachis lafresnayi (Fischer and Bernardi 1857)
18 individuals
recombined as Cotonopsis (Cotonopsis) lafresnayi
Anachis obesa (Adams 1845)
25 individuals
recombined as Parvanachis obesa
Mitrella lunata (Say 1826)
2 individuals
recombined as Astyris lunata
Gastropoda - Neogastropoda - Melongenidae
Busycon sp. Röding 1798
1 individual
Gastropoda - Neogastropoda - Nassariidae
Nassarius albus Say 1826
8 individuals
replaced by Nassarius antillarum
Gastropoda - Neogastropoda - Turridae
? Turridae indet. Swainson 1840
1 individual
Gastropoda - Neogastropoda - Marginellidae
Prunum sp. Swainson 1840
3 individuals
Gastropoda - Neogastropoda - Muricidae
Urosalpinx cinerea (Say 1822)
2 individuals
Gastropoda - Cerithiopsidae
Cerithiopsis adamsi
1 individual
    = Cerithiopsis adamsii Lea 1845
Rosenberg 2005
recombined as Seila adamsii
Seila adamsi (Lea 1845)
1 individual
recombined as Seila adamsii
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula fornicata (Linnaeus 1758)
545 individuals
Crepidula convexa Say 1822
2 individuals
Crepidula plana Say 1822
6 individuals
Thecostraca - Balanomorpha - Balanidae
Balanus sp. Da Costa 1778
124 individuals
Malacostraca - Decapoda
Brachyura indet. (Latreille 1802)
6 individuals
original and current combination Brachyuri
see common names

Geography
Country:United States State/province:North Carolina County:Craven
Coordinates: 35.0° North, 77.0° West (view map)
Paleocoordinates:35.1° North, 76.5° West
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period:Quaternary Epoch:Pleistocene
10 m.y. bin:Cenozoic 6
Key time interval:Early/Lower Pleistocene
Age range of interval:2.58000 - 0.77400 m.y. ago
Stratigraphy
Formation:James City
Local section:Johnson Point Local bed:2.4 m
Local order:top to bottom
Stratigraphic resolution:bed
Stratigraphy comments: Basinal/regional section name: Neuse River.
Sample 2 collected from ~0.7 m above the base of the section, ~0.2 m above Sample 1, and ~0.6 m below Sample 3. James City Fm was regarded as Pliocene by DuBar and Solliday (1963), though more recent biostratigraphy indicates an Early Pleistocene age (DuBar et al. 1974, Blackwelder 1981, McCartan et al. 1982). The James City Fm is considered time equivalent or slightly younger than the Waccamaw Fm of N. and S. Carolina., and with the Caloosahatchee Fm of Florida. Cronin et a. (1984) proposed an age of 1.3-0.7 Ma for the formation.
Lithology and environment
Primary lithology:shelly/skeletal,gray,blue unlithified sandy mudstone
Lithology description: Medium bluish gray to olive gray, slightly indurated, shelly sandy mudstone to siltstone containing shelly interbeds (presumably sampled).
Environment:estuary/bay
Geology comments: Shallow subtropical marine bay having fairly open communication with the ocean.
Taphonomy
Modes of preservation:body,original aragonite,original calcite
Size of fossils:macrofossils
Preservation of anatomical detail:excellent
Articulated whole bodies:some
Spatial resolution:autochthonous
Collection methods and comments
Collection methods:bulk,field collection
Reason for describing collection:paleoecologic analysis
Collection method comments: Counts are specimen tallies corrected to estimate numbers of individual organisms (e.g. for bivalves 1 beak fragment = 1/2 individual). Because of moder of preservation (e.g. dismembered zoaria of fragile bryozoans), abundance of certain organisms given as: A, abundant; C, common; R, rare. Repository unknown, possibly at Humboldt State University.
Taxonomic list comments:Exhaustive for bulk samples, which should be very representative given that they have sample sizes in excess of 1-2,000 specimens. Nomenclature modern.
Metadata
Database number:60987
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:L. Eccles Research group:GCP,marine invertebrate
Created:2006-05-29 00:45:55 Last modified:2013-11-25 13:37:23
Access level:the public Released:2006-05-29 00:45:55
Creative Commons license:CC BY
Reference information

Primary reference:
17561. W. Miller. 1990. Checklist of megafossils from the James City Formation (Lower Pleistocene) at Johnson Point, Craven County, North Carolina. Tulane Studies in Geology and Paleontology 22:93-100 [A. Miller/A. Hendy]

Secondary references:

19419 G. Rosenberg. 2005. Malacolog 4.0: A database of Western Atlantic marine Mollusca. [WWW database (version 4.1.0)] URL http://data.acnatsci.org/wasp [A. Hendy/A. Hendy]