AlChBu Rep 2: Ypresian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Eulimidae
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Eulima (Subularia) cainei
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1 specimen | |||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Calyptraea aperta
(Solander 1766)
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1 specimen | |||||||||
| recombined as Calyptraea (Trochita) aperta | ||||||||||
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Gastropoda
- Turritellidae
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Turritella gilberti
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19 specimens | |||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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Laevibuccinum lineatum
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1 specimen | |||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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cf. Cyllene bellana
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4 specimens | |||||||||
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? Nassarius sp.
Duméril 1806
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3 specimens | |||||||||
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cf. Bullia altilis
(Conrad 1832)
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1 specimen | |||||||||
| Cf. Bullia altilis subglobosa | ||||||||||
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Gastropoda
- Neogastropoda
- Cancellariidae
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Bonellitia silvaerupis
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1 specimen | |||||||||
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Gastropoda
- Neogastropoda
- Raphitomidae
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Raphitoma cf. veatchi
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1 specimen | |||||||||
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Gastropoda
- Naticidae
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Polinices sp.
Monfort 1810
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2 specimens | |||||||||
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Gastropoda
- Opisthobranchia
- Retusidae
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Retusa sylvaerupis
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2 specimens | |||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Calorhadia sp.
Stewart 1930
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4 specimens | |||||||||
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Saccella robusta
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7 specimens | |||||||||
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Bivalvia
- Carditida
- Carditidae
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Venericardia ? turneri
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2 specimens | |||||||||
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Venericardia horatiana
Gardner 1927
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20 specimens | |||||||||
| recombined as Venericardia (Venericor) horatiana | ||||||||||
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Venericardia bashiplata
Gardner and Bowles 1939
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32 specimens | |||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Linga pomilia
Conrad 1833
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2 specimens | |||||||||
| Linga pomilia smithi | ||||||||||
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Epilucina sp.
Dall 1901
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2 specimens | |||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Vokesula aldrichi
(Meyer 1885)
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32 specimens | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Macrocallista sylvaerupis
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4 specimens | |||||||||
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Pitar nuttalliopsis
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5 specimens | |||||||||
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Bivalvia
- Cardiida
- Tellinidae
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Tellina subtriangularis
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3 specimens | |||||||||
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Bivalvia
- Arcida
- Arcidae
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Arca hatchetigbeensis
Harris 1897
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2 specimens | |||||||||
| recombined as Arca (Arca) hatchetigbeensis | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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2 specimens | |||||||||
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium microstria
Heilprin 1880
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11 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Alabama | County: | Choctaw |
| Coordinates: | 32.1° North, 88.2° West (view map) | ||||
| Paleocoordinates: | 34.1° North, 73.7° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Ypresian | ||
| Age range of interval: | 56.00000 - 47.80000 m.y. ago |
Stratigraphy
| Geological group: | Wilcox | Formation: | Hatchetigbee Bluff | Member: | Bashi |
| Stratigraphy comments: Rep 1 is 8.8m laterally from Rep 2 and about 40cm above it
Rep 3 is 3.8m laterally from Rep 1 | |||||
Lithology and environment
| Primary lithology: | glauconitic unlithified muddy,calcareous sandstone |
| Lithology description: unlithified glaucontic calcareous clayey sand | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection methods: | bulk,sieve |
| Minimum sieve size: | 2.000 |
| Rock censused: | 231 g |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Gastropod shells were only counted if they contained the apex of the shell; bivalve shells were only counted if they contained the umbo.
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Metadata
| Database number: | 90039 | ||
| Authorizer: | J. Sessa | Enterer: | L. Eccles |
| Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
| Created: | 2009-07-01 16:27:15 | Last modified: | 2018-05-13 16:30:54 |
| Access level: | the public | Released: | 2009-07-01 16:27:15 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 29915. | J. A. Sessa, T. J. Bralower, M. E. Patzkowsky, J. C. Handley, and L. C. Ivany. 2012. Environmental and biological controls on the diversity and ecology of Late Cretaceous through early Paleogene marine ecosystems in the US Gulf Coastal Plain. Paleobiology 38(2):218-239 [M. Patzkowsky/J. Sessa/J. Sessa] |
Secondary references:
| 34008 | L. C. Ivany, C. Pietsch, J. C. Handley, R. Lockwood, W. D. Allmon and J. A. Sessa. 2018. Little lasting impact of the Paleocene-Eocene Thermal Maximum on shallow marine mollusk faunas. Science Advances [J. Sessa/J. Sessa/J. Sessa] |