LGS 21: Thanetian, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Turritellidae
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Turritella mortoni
Conrad 1830
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recombined as Kapalmerella mortoni | ||||||||||
Turritella mortoni postmortoni | ||||||||||
Gastropoda
- Neogastropoda
- Melongenidae
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Levifusus identus
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Gastropoda
- Neogastropoda
- Raphitomidae
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Pleurotomella veatchi
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Bivalvia
- Arcida
- Arcidae
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Arca (Barbatia) cuculloides
(Conrad 1833)
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recombined as Barbatia (Cucullaearca) cuculloides | ||||||||||
Arca (Barbatia) cuculloides ludoviciana | ||||||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostrea thirsae
(Gabb 1862)
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recombined as Odontogryphaea thirsae | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
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Cardium (Cerastoderma) tuomeyi
(Aldrich 1886)
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recombined as Acanthocardia (Schedocardia) tuomeyi | ||||||||||
Cardium (Cerastoderma) tuomeyi var. | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
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Tellina ? sp.
Linnaeus 1758
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Bivalvia
- Carditida
- Carditidae
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Venericardia (Venericor) densata
(Conrad 1845)
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Venericardia (Venericor) densata pendletonensis | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Louisiana | County: | Natchitoches |
Coordinates: | 31.7° North, 93.4° West (view map) | ||||
Paleocoordinates: | 35.2° North, 76.3° West | ||||
Basis of coordinate: | based on nearby landmark | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Paleocene |
Stage: | Thanetian | 10 m.y. bin: | Cenozoic 1 |
Key time interval: | Thanetian | ||
Age range of interval: | 59.20000 - 56.00000 m.y. ago |
Stratigraphy
Geological group: | Wilcox | Formation: | Marthaville |
Stratigraphic resolution: | formation |
Lithology and environment
Primary lithology: | concretionary,ferruginous,glauconitic unlithified calcareous siltstone |
Lithology description: Fossils occur in glauconitic calcareous silty mass and in ferruginous concretions. | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection methods: | field collection |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 99725 | ||
Authorizer: | J. Sessa | Enterer: | L. Eccles |
Modifier: | L. Eccles | Research group: | GCP,marine invertebrate |
Created: | 2010-11-19 13:37:21 | Last modified: | 2011-02-16 18:13:10 |
Access level: | group members | Released: | 2015-11-19 13:37:21 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
35012. | J. O. Barry and R. J. LeBlanc. 1942. Lower Eocene Faunal Units of Lousiana. Geological Bulletin of the state of Louisiana Dept. of Conservation (23)1-208 [J. Sessa/L. Eccles/L. Eccles] |