Claiborne Bluff 6 (Gosport Sand, AL): Bartonian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Levifusus alveata
Conrad
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Olividae
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Ancilla staminea
Conrad 1832
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1 individual | |||||||||
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Gastropoda
- Neogastropoda
- Olivellidae
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Agaronia alabamensis
Conrad 1833
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10 individuals | |||||||||
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Agaronia bombylis
Conrad 1833
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5 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Volutidae
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Bullata semen
Lea 1833
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7 individuals | |||||||||
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Gastropoda
- Neogastropoda
- Marginellidae
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Marginella constricta
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7 individuals | |||||||||
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Cryptospira silabra
(Palmer 1937)
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1 individual | |||||||||
| original and current combination Marginella silabra | ||||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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Buccitriton sagenum
(Conrad 1833)
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2 individuals | |||||||||
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Penion bellus
(Conrad 1833)
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5 individuals | |||||||||
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Pseudoliva vetusta
(Conrad 1833)
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2 individuals | |||||||||
| original and current combination Monoceros vetusta | ||||||||||
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Gastropoda
- Rostellariidae
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Calyptraphorus velatus
(Conrad 1833)
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31 individuals | |||||||||
| recombined as Calyptraphorus velata | ||||||||||
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Gastropoda
- Vermetidae
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Serpulorbis major
(Chavan 1937)
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5 individuals | |||||||||
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Gastropoda
- Naticidae
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Polinices eminulus
(Conrad 1833)
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1 individual | |||||||||
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Neverita limula
(Conrad 1833)
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3 individuals | |||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula dumosa
Conrad 1834
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4 individuals | |||||||||
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Crepidula lirata
Conrad 1833
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39 individuals | |||||||||
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Gastropoda
- Siliquariidae
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Tenagodus vitis
(Conrad 1835)
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4 individuals | |||||||||
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Gastropoda
- Turritellidae
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Turritella carinata
Lea 1833
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169 individuals | |||||||||
| recombined as Haustator carinata | ||||||||||
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Mesalia vetusta
(Conrad 1833)
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252 individuals | |||||||||
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Gastropoda
- Opisthobranchia
- Retusidae
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Retusa galba
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27 individuals | |||||||||
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta ungulina
Conrad 1833
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11 individuals | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Callista aequorea
Conrad 1833
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2 individuals | |||||||||
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Callista perovata
(Conrad 1833)
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1 individual | |||||||||
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Bivalvia
- Pholadida
- Corbulidae
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cf. Parmicorbula gibbosa
Lea 1833
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6 individuals | |||||||||
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cf. Caestocorbula murchisonii
(Lea 1833)
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39 individuals | |||||||||
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Caryocorbula densata
(Conrad 1854)
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6 individuals | |||||||||
| original and current combination Corbula densata | ||||||||||
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Caryocorbula alabamiensis
(Lea 1833)
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5 individuals | |||||||||
| recombined as Corbula (Caryocorbula) alabamiensis | ||||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Linga alveata
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6 individuals | |||||||||
| Linga pomilia alveata | ||||||||||
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Linga pomilia
Conrad 1833
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5 individuals | |||||||||
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Bivalvia
- Carditida
- Carditidae
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Venericardia parva
Lea 1833
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37 individuals | |||||||||
| recombined as Venericardia (Pleuromeris) parva | ||||||||||
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Venericardia rotunda
Lea 1833
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33 individuals | |||||||||
| recombined as Venericardia (Rotundicardia) rotunda | ||||||||||
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Bivalvia
- Carditida
- Crassatellidae
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Bathytormus protextus
(Conrad 1832)
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4 individuals | |||||||||
| recombined as Bathytormus protexta | ||||||||||
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris minor
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101 individuals | |||||||||
| Glycymeris trigonella minor | ||||||||||
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Glycymeris trigonella
(Conrad 1833)
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57 individuals | |||||||||
| original and current combination Pectunculus trigonella | ||||||||||
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Glycymeris staminea
Conrad 1833
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6 individuals | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Monroe |
| Coordinates: | 31.5° North, 87.5° West (view map) | ||||
| Paleocoordinates: | 32.1° North, 78.7° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
| *Period: | Tertiary | ||
| *International age/stage: | Late/Upper Bartonian | ||
| Key time interval: | Bartonian | ||
| Age range of interval: | 41.20000 - 37.71000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Claiborne | Formation: | Gosport Sand | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "At each site, the horizon sampled was in the lower third of the exposure, approx. 2m above the base of the formation, but stratigraphic equivalence is undetermined." | |||||
Lithology and environment
| Primary lithology: | glauconitic,shelly/skeletal unlithified calcareous sandstone |
| Secondary lithology: | "shale" |
| Lithology description: the gosport sand is a deposit of early late eocene (bartonian) age, and consists of 2-10m of extremely fossiliferous, unconsolidated, glauconitic, calcareous quartz sand, with occasional indurated ledges and thin lenses of carbonaceous shale and lignite. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | all microfossils,some macrofossils |
| Collection methods: | bulk,mechanical,sieve,field collection |
| Collection size: | 13646 |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: "Numbers of specimens reflect number of identifiable gastropod apices and total number of bivalve umbos; unidentifiable fragments were not counted." | |
Metadata
| Database number: | 5334 | ||
| Authorizer: | A. Miller | Enterer: | K. Layou |
| Modifier: | U. Smith | Research group: | GCP,marine invertebrate |
| Created: | 1999-09-24 11:56:50 | Last modified: | 2010-10-15 00:39:50 |
| Access level: | the public | Released: | 1999-09-24 11:56:50 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 315. | E. A. CoBabe and W. D. Allmon. 1994. Effects of sampling on paleoecologic and taphonomic analyses in high-diversity fossil accumulations: an example from the Eocene Gosport Sand, Alabama. Lethaia 27:167-178 [A. Miller/K. Layou/P. Wagner] |