Johnson Point - Sample 3 (James City Fm): Early/Lower Pleistocene, North Carolina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Clypeasteroida
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Clypeasteroida indet.
Agassiz 1836
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R category | |||||||||
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Pisces
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Pisces indet.
Linnaeus 1758
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| synonym of Osteichthyes | ||||||||||
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Polychaeta
- Spionida
- Spionidae
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Polydora sp.
Bosk 1801
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C category | |||||||||
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Polyplacophora
- Neoloricata
- Chaetopleuridae
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Chaetopleura sp.
Shuttleworth 1853
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1 individual | |||||||||
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Gastropoda
- Epitoniidae
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Epitonium apiculatum
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2 individuals | |||||||||
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Gastropoda
- Eulimidae
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Melanella conoidea
(Kurtz and Stimpson 1851)
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3 individuals | |||||||||
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Melanella intermedia
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7 individuals | |||||||||
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= Melanella jamaicensis
Adams 1845
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Hendy et al. 2008 | |||||||||
| Melanella intermedia in Recent European; misidentification | ||||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula convexa
Say 1822
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2 individuals | |||||||||
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Crepidula fornicata
(Linnaeus 1758)
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586 individuals | |||||||||
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Crepidula plana
Say 1822
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7 individuals | |||||||||
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Gastropoda
- Naticidae
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Polinices sp.
Monfort 1810
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2 individuals | |||||||||
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Gastropoda
- Triphoridae
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Triphora sp.
Blainville 1828
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1 individual | |||||||||
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Gastropoda
- Cerithiopsidae
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Cerithiopsis vinca
(Olsson and Harbison 1953)
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3 individuals | |||||||||
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Cerithiopsis emersoni
Adams 1839
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2 individuals | |||||||||
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= Retilaskeya bicolor
Adams 1845
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Hendy et al. 2008 | |||||||||
| Cerithiopsis emersoni is unavailable | ||||||||||
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Seila adamsi
(Lea 1845)
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7 individuals | |||||||||
| recombined as Seila adamsii | ||||||||||
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Gastropoda
- Neogastropoda
- Melongenidae
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Busycon sp.
Röding 1798
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12 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius albus
Say 1826
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11 individuals | |||||||||
| replaced by Nassarius antillarum | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Anachis obesa
(Adams 1845)
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19 individuals | |||||||||
| recombined as Parvanachis obesa | ||||||||||
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Anachis lafresnayi
(Fischer and Bernardi 1857)
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18 individuals | |||||||||
| recombined as Cotonopsis (Cotonopsis) lafresnayi | ||||||||||
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Mitrella lunata
(Say 1826)
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2 individuals | |||||||||
| recombined as Astyris lunata | ||||||||||
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Gastropoda
- Neogastropoda
- Marginellidae
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Prunum sp.
Swainson 1840
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1 individual | |||||||||
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Hyalina sp.
Schumacher 1817
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Urosalpinx cinerea
(Say 1822)
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13 individuals | |||||||||
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Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla (Pyrgiscus) informal sp. A
(Philippi 1841)
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8 individuals | |||||||||
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Turbonilla (Pyrgiscus) informal sp. B
(Philippi 1841)
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7 individuals | |||||||||
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Turbonilla (Chemnitzia) sp.
(d'Orbigny 1840)
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22 individuals | |||||||||
| original and current combination Chemnitzia | ||||||||||
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Odostomia sp.
Fleming 1817
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1 individual | |||||||||
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Odostomia conoidea
(Brocchi 1814)
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1 individual | |||||||||
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= Odostomia acutidens
Dall 1884
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Hendy et al. 2008 | |||||||||
| Odostomia conoidea is European species; misidentified | ||||||||||
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Boonea seminuda
(Adams 1839)
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543 individuals | |||||||||
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Boonea impressa
(Say 1822)
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21 individuals | |||||||||
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Gastropoda
- Heterostropha
- Ringiculidae
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Ringicula sp.
Deshayes 1838
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2 individuals | |||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana acuta
(Conrad 1832)
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144 individuals | |||||||||
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia limatula
(Say 1831)
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4 individuals | |||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Nucula proxima
Say 1820
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8 individuals | |||||||||
| recombined as Nucula (Nucula) proxima | ||||||||||
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Bivalvia
- Hiatellida
- Hiatellidae
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Hiatella arctica
(Linnaeus 1767)
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2 individuals | |||||||||
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Bivalvia
- Solenida
- Pharidae
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Ensis directus
(Conrad 1844)
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1 individual | |||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula conradi
Gardner 1944
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2 individuals | |||||||||
| recombined as Caryocorbula conradi | ||||||||||
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Bivalvia
- Pholadida
- Myidae
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Sphenia sp.
Turton 1822
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21 individuals | |||||||||
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Bivalvia
- Cardiida
- Sportellidae
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Ensitellops protexta
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3 individuals | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Callocardia sayana
(Conrad 1833)
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1 individual | |||||||||
| synonym of Pitar morrhuanus | ||||||||||
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Mercenaria permagna
(Conrad 1838)
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14 individuals | |||||||||
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Bivalvia
- Cardiida
- Mactridae
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Spisula sp.
Gray 1837
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1 individual | |||||||||
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Mulinia lateralis
(Say 1822)
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24 individuals | |||||||||
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Bivalvia
- Cardiida
- Semelidae
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Abra aequalis
(Say 1822)
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13 individuals | |||||||||
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Cumingia tellinoides
(Conrad 1831)
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8 individuals | |||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Modiolus sp.
(Lamarck 1801)
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1 individual | |||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Argopecten eboreus
(Conrad 1833)
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1 individual | |||||||||
| recombined as Carolinapecten eboreus | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sculpturata
Conrad 1840
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130 individuals | |||||||||
| recombined as Conradostrea sculpturata | ||||||||||
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Bivalvia
- Arcida
- Arcidae
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Anadara aequicostata
(Conrad 1845)
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52 individuals | |||||||||
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Gymnolaemata
- Cheilostomata
- Bitectiporidae
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Hippoporina cf. pertusa
(Esper 1796)
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C category | |||||||||
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Gymnolaemata
- Cheilostomata
- Phidoloporidae
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Hippoporella cf. gorgonensis
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R category | |||||||||
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Gymnolaemata
- Cheilostomata
- Bryocryptellidae
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Cyclocolposa perforata
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C category | |||||||||
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Gymnolaemata
- Cheilostomata
- Cribrilinidae
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Cribrilina punctata
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C category | |||||||||
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Gymnolaemata
- Cheilostomata
- Electridae
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Electra sp.
Lamouroux 1816
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C category | |||||||||
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Gymnolaemata
- Ctenostomata
- Terebriporidae
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Spathipora sp.
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A category | |||||||||
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Malacostraca
- Decapoda
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Brachyura sp.
(Latreille 1802)
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9 individuals | |||||||||
| original and current combination Brachyuri | ||||||||||
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Thecostraca
- Balanomorpha
- Balanidae
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Balanus sp.
Da Costa 1778
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210 individuals | |||||||||
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Demospongiae
- Clavulina
- Clionaidae
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? Cliona sp.
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C category | |||||||||
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unclassified
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Triphora dupliniana
(Olsson 1916)
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1 individual | |||||||||
| recombined as Cosmotriphora dupliniana | ||||||||||
| 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: | 1.8 m | ||
| Local order: | top to bottom | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Basinal/regional section name: Neuse River.
Sample 3 collected from ~1.8 m below the top of the section, ~0.6 m below Sample 4, and ~0.6 m below Sample 2. 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: | coarse,shelly/skeletal,gray,blue unlithified sandy mudstone |
| Lithology description: Medium bluish gray to olive gray, slightly indurated, shelly coarse 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: | 60988 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | L. Eccles | Research group: | GCP,marine invertebrate |
| Created: | 2006-05-29 00:47:59 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | the public | Released: | 2006-05-29 00:47:59 |
| 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:
| 19909 | A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy] |