Ragley Lumber #D1 well - 14359ft: Eocene, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
|
|||||||
Calamuspollenites spp. microspore
|
1 specimen | ||||||
Casurinidites pulcher microspore
|
20 specimens | ||||||
Pistillipollenites mcgregorii microspore
|
1 specimen | ||||||
Spinaepollis spinosus microspore
|
2-9 category | ||||||
Nudopollis terminalis microspore
|
1 specimen | ||||||
Thompsonipollis magnificus microspore
|
22 specimens | ||||||
Cyathedites spp. microspore
|
19 specimens | ||||||
Sterisporites buchenauensis microspore
|
1 specimen | ||||||
Sterisporites bujargensis microspore
|
3 specimens | ||||||
Sterisporites spp. microspore
|
1 specimen | ||||||
Sterisporites steroides microspore
|
1 specimen | ||||||
Pesavis tagulensis
|
1 specimen | ||||||
Pleuricellaesporites spp.
|
1 specimen | ||||||
Lycopodiopsida
- Lycopodiales
- Lycopodiaceae
|
|||||||
Hamulatisporites spp. microspore
|
15 specimens | ||||||
Lycopodiumsporites spp. microspore
|
1 specimen | ||||||
Algae
- Zygnemataceae
|
|||||||
Ovoidites spp. microspore
|
2-9 category | ||||||
unclassified
|
|||||||
Converrucosisporites spp. microspore
|
2-9 category | ||||||
Microreticulatisporites spp. microspore
|
1 specimen | ||||||
Triplanosporites spp. microspore
|
1 specimen | ||||||
Pteridopsida
|
|||||||
Osmundacidites spp. microspore
|
2-9 category | ||||||
Polypodiopsida
- Schizaeales
- Schizaeaceae
|
|||||||
Cicatricosisporites dorogensis microspore
Potonie and Gelletich 1933
|
14 specimens | ||||||
Polypodiopsida
- Polypodiaceae
|
|||||||
Laevigatosporites spp. microspore
|
20 specimens | ||||||
Verrucatosporites spp. microspore
|
1 specimen | ||||||
unclassified
|
|||||||
Divisisporites spp. microspore
|
2-9 category | ||||||
Spermatophyta informal Pollen spp. microspore
|
14 specimens | ||||||
Angiospermae
- Malvales
- Bombacaceae
|
|||||||
Bombacacidites spp. microspore
|
1 specimen | ||||||
Angiospermae
- Malpighiales
- Euphorbiaceae
|
|||||||
Tricolporopollenites spp. microspore
|
2 specimens | ||||||
Angiospermae
- Fabales
- Fabaceae
|
|||||||
Margocolporites kruschii microspore
|
2 specimens | ||||||
Angiospermae
- Fagales
- Juglandaceae
|
|||||||
Caryapollenites informal sp. <29 micrometers microspore
PotoniƩ 1960
|
1 specimen | ||||||
Caryapollenites spp. microspore
|
3 specimens | ||||||
Momipites spp. microspore
|
1 specimen | ||||||
Angiospermae
- Proteales
- Proteaceae
|
|||||||
Triporopollenites bituitus microspore
|
11 specimens | ||||||
Triporopollenites spp. microspore
|
20 specimens | ||||||
Angiospermae
- Arecaceae
|
|||||||
Arecipites spp. microspore
|
1 specimen | ||||||
Angiospermae
- Liliaceae
|
|||||||
Liliacidites spp. microspore
|
1 specimen | ||||||
Coniferales
|
|||||||
Coniferales informal Bisaccate spp. microspore
|
23 specimens | ||||||
Coniferales
- Cupressaceae
|
|||||||
Taxodium spp. microspore
|
18 specimens | ||||||
Pinopsida
- Pinales
- Pinaceae
|
|||||||
Pinuspollenites spp. microspore
|
9 specimens | ||||||
Piceapollenites spp. microspore
|
2-9 category | ||||||
Magnoliopsida
|
|||||||
Favitricolporites baculoferous microspore
|
1 specimen | ||||||
Basopollis obscurocostatus microspore
|
1 specimen | ||||||
Chlorophyceae
|
|||||||
Pediastrum spp. microspore
|
4 specimens | ||||||
unclassified
|
|||||||
Schizosporis spp. microspore
|
1 specimen | ||||||
Monoporisporites spp.
|
1 specimen | ||||||
Tricolpopollenites spp. microspore
|
2 specimens | ||||||
see common names |
Geography
Country: | United States | State/province: | Louisiana | County: | Allen |
Coordinates: | 30.0° North, 92.0° West (view map) | ||||
Paleocoordinates: | 31.6° North, 81.0° West | ||||
Geographic resolution: | small collection |
Time
Period: | Paleogene | Epoch: | Eocene |
Key time interval: | Eocene | ||
Age range of interval: | 56.00000 - 33.90000 m.y. ago |
Stratigraphy
Geological group: | Wilcox | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Horizon sample from drill core. Gregory and Hart (1995a, pollen and spores) do not recognize the Clairbornian in the core, but in Gregory and Hart (1995, dinoflagellates), they do. Both papers look at the same samples from the same core and derive different age assignments because they treat each independently. RAL elected to enter a uniform age assignment for both papers. |
Lithology and environment
Primary lithology: | siltstone | ||
Secondary lithology: | "shale" | ||
Lithology description: 50 siltstone and shale samples used in the study by Gregory (1991) | |||
Environment: | deltaic indet. | Tectonic setting: | passive margin |
Glacial or sequence phase: | regressive | ||
Geology comments: ...due to a decrease in sediment supply in late Sabian, the style of deltaic sedimentation changed from fluvial-dominated to wave-dominated, shelf-edge deltas (Lowery 1987) |
Taphonomy
Modes of preservation: | original chitin,original sporopollenin |
Size of fossils: | microfossils |
Collection methods and comments
Collection methods: | core,chemical,field collection |
Reason for describing collection: | paleoecologic analysis |
Metadata
Database number: | 33829 | ||
Authorizer: | H. Sims | Enterer: | A. McGowan, J. Cassara |
Modifier: | J. Cassara | Research group: | paleobotany |
Created: | 2003-08-07 09:49:14 | Last modified: | 2004-02-21 17:59:26 |
Access level: | the public | Released: | 2003-08-07 09:49:14 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
4067. | W. A. Gregory and G. F. Hart. 1995. Distribution of pollen and spores in a subsurface marine Wilcox (Paleocene-Eocene) section in southwest Louisiana. Palynology 19:1-43 [R. Lupia/R. Vaughn] |