Spear Creek (H76-35-1) Bulk 2: Ypresian, Alabama
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Heterostropha
- Ringiculidae
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Ringicula butleriana
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8 specimens | |||||||||
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Gastropoda
- Neogastropoda
- Cancellariidae
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Bonellitia sp.
Jousseaume 1887
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2 specimens | |||||||||
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Trigonostoma sp.
Blainville 1827
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1 specimen | |||||||||
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Gastropoda
- Neogastropoda
- Volutidae
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Athleta ? tuomeyi
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1 specimen | |||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Bulliopsis choctavensis
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4 specimens | |||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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? Latirus interstriatus
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1 specimen | |||||||||
| Latirus (Dolicholatirus?) interstriatus | ||||||||||
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Lirofusus subtenuis
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1 specimen | |||||||||
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Gastropoda
- Neogastropoda
- Buccinidae
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cf. Pseudoneptunea harrisi
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15 specimens | |||||||||
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Gastropoda
- Rostellariidae
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Calyptraphorus trinodiferus
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12 specimens | |||||||||
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Gastropoda
- Naticidae
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Euspira leana
(Palmer 1937)
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29 specimens | |||||||||
| original and current combination Natica semilunata leana | ||||||||||
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Sinum ? fiski
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1 specimen | |||||||||
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Gastropoda
- Turritellidae
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Turritella gilberti
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92 specimens | |||||||||
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Gastropoda
- Opisthobranchia
- Retusidae
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Retusa sylvaerupis
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11 specimens | |||||||||
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Bivalvia
- Cardiida
- Veneridae
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Pitar nuttalliopsis
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8 specimens | |||||||||
| MNI 4 | ||||||||||
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Macrocallista sylvaerupis
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174 specimens | |||||||||
| MNI 93 | ||||||||||
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Bivalvia
- Cardiida
- Mactridae
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Spisula parilis
Conrad 1833
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7 specimens | |||||||||
| MNI 4 Spisula parilis bistriata | ||||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Vokesula aldrichi
(Meyer 1885)
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162 specimens | |||||||||
| MNI 95 | ||||||||||
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Bivalvia
- Carditida
- Carditidae
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Venericardia bashiplata
Gardner and Bowles 1939
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499 specimens | |||||||||
| MNI 254 | ||||||||||
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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3 specimens | |||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Brachidontes alabamensis
(Aldrich 1895)
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2 specimens | |||||||||
| MNI 1 | ||||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana sp.
Link 1807
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6 specimens | |||||||||
| MNI 3 | ||||||||||
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Scaphopoda
- Gadilida
- Gadilidae
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Cadulus sp.
Philippi 1844
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90 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: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
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
| Formation: | Hatchetigbee Bluff | Member: | Bashi |
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | yellow poorly lithified sandstone |
| Lithology description: Sand 1 weathered yellow very fossiliferous. Layer of large flat lying Venericardia valves near top of unit. | |
| Environment: | shallow subtidal indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection methods: | bulk,sieve,survey of museum collection |
| Reason for describing collection: | paleoecologic analysis |
| Museum repositories: | YPM |
| Collection method comments: Hansen dissertation material reposited at YPM, was picked and identified by T. Hansen. | |
Metadata
| Database number: | 83810 | ||
| Authorizer: | A. Miller | Enterer: | J. Sessa |
| Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
| Created: | 2008-09-02 12:44:25 | Last modified: | 2018-05-13 16:16:25 |
| Access level: | the public | Released: | 2008-09-02 12:44:25 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 42. | T. A. Hansen. 1978. Ecological control of evolutionary rates in Paleocene - Eocene marine molluscs. Ph.D. Thesis, Yale University 1-310 [T. Hansen/M. Sommers/A. Clement] |
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] | |
| 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] |