Natchitoches, LA; near top of Bed B, bag #2: Lutetian, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
|
||||||||||
|
Gastropoda indet.
Cuvier 1795
|
7 individuals | |||||||||
| Gastropod Y | ||||||||||
|
Gastropoda
- Naticidae
|
||||||||||
|
Naticidae indet.
Guilding 1834
|
4 individuals | |||||||||
|
Gastropoda
- Neogastropoda
- Melongenidae
|
||||||||||
|
Levifusus mortoniopsis
|
3 individuals | |||||||||
|
Gastropoda
- Heterostropha
- Architectonicidae
|
||||||||||
|
Architectonica meekana
|
1 individual | |||||||||
| A. m. splendida | ||||||||||
|
Gastropoda
- Heterostropha
- Ringiculidae
|
||||||||||
|
Ringicula trapaquara
|
7 individuals | |||||||||
|
Gastropoda
- Opisthobranchia
- Retusidae
|
||||||||||
|
Retusa galba
|
3 individuals | |||||||||
|
Gymnolaemata
- Cheilostomata
- Lepraliellidae
|
||||||||||
|
Holoporella granulosa
|
3 individuals | |||||||||
| synonym of Celleporaria | ||||||||||
|
Gymnolaemata
- Cheilostomata
- Lunulitidae
|
||||||||||
|
Lunulitidae indet.
Lagaaij 1952
|
12 individuals | |||||||||
| lunulitid A | ||||||||||
|
Anthozoa
- Scleractinia
- Turbinoliidae
|
||||||||||
|
Turbinolia pharetra
Lea 1833
|
3 individuals | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Louisiana | County: | Natchitoches |
| Coordinates: | 31.8° North, 93.1° West (view map) | ||||
| Paleocoordinates: | 33.5° North, 81.9° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
| *Period: | Tertiary | *Local age/stage: | Claibornian |
| Key time interval: | Lutetian | Zone: | late |
| Age range of interval: | 47.80000 - 41.20000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Weches | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: above bed A | |||||
Lithology and environment
| Primary lithology: | glauconitic unlithified marl |
| Environment: | offshore |
| Geology comments: glauconitic marl, oxidized, pale gray-green fresh most fossils are moldic or rotten aragonite | |
Taphonomy
| Modes of preservation: | body,cast,original aragonite,original calcite |
| Size of fossils: | mesofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | bulk,mechanical,sieve,field collection |
| Reason for describing collection: | paleoecologic analysis |
| Taxonomic list comments:includes all macrofossils but bivalves, but oysters ARE included | |
Metadata
| Also known as: | LNa-1b | ||
| Database number: | 2410 | ||
| Authorizer: | L. Ivany | Enterer: | L. Ivany |
| Modifier: | J. Sessa | Research group: | GCP,marine invertebrate |
| Created: | 1999-07-03 13:45:19 | Last modified: | 2010-08-10 11:46:58 |
| Access level: | the public | Released: | 1999-07-03 13:45:19 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 72. | L. C. Ivany. 1997. Faunal stability and environmental change in the middle Eocene Gulf Coastal Plain (PhD Thesis, Harvard University). 1-221 [L. Ivany/L. Ivany/A. Clement] |