Ragley Lumber #D1 well - 11412ft: Eocene, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
unclassified
|
||||||||||
|
Calamuspollenites spp. microspore
|
2 specimens | |||||||||
|
Casurinidites pulcher microspore
|
8 specimens | |||||||||
|
Tiliaepollenites spp. microspore
|
2-9 category | |||||||||
|
Nudopollis terminalis microspore
|
2-9 category | |||||||||
|
Thompsonipollis magnificus microspore
|
56 specimens | |||||||||
|
Sterisporites bujargensis microspore
|
1 specimen | |||||||||
|
Sterisporites bimammatus microspore
|
1 specimen | |||||||||
|
Sterisporites spp. microspore
|
1 specimen | |||||||||
|
Sterisporites steroides microspore
|
1 specimen | |||||||||
|
Sequoidendron spp. microspore
|
1 specimen | |||||||||
|
Pleuricellaesporites spp.
|
2-9 category | |||||||||
|
Inapertisporites spp.
|
1 specimen | |||||||||
|
Dyadosporonites spp.
|
1 specimen | |||||||||
|
Diporisporites spp.
|
1 specimen | |||||||||
|
Lacrimasporonites basidii
|
1 specimen | |||||||||
|
Algae
- Zygnemataceae
|
||||||||||
|
Ovoidites spp. microspore
|
2 specimens | |||||||||
|
unclassified
|
||||||||||
|
Divisisporites enormis microspore
|
2 specimens | |||||||||
|
Angiospermae
- Malvales
- Bombacaceae
|
||||||||||
|
Bombacacidites spp. microspore
|
1 specimen | |||||||||
|
Angiospermae
- Fabales
- Fabaceae
|
||||||||||
|
Margocolporites kruschii microspore
|
1 specimen | |||||||||
|
Angiospermae
- Fagales
- Fagaceae
|
||||||||||
|
Cupuliferoipollenites spp. microspore
|
1 specimen | |||||||||
|
Angiospermae
- Fagales
- Betulaceae
|
||||||||||
|
Alnipollenites verus microspore
Potonie 1931
|
1 specimen | |||||||||
|
Angiospermae
- Fagales
- Juglandaceae
|
||||||||||
|
Platycaryapollenites platycaryoides microspore
|
2-9 category | |||||||||
|
Momipites spp. microspore
|
1 specimen | |||||||||
|
Caryapollenites informal prodromus-imparalis type microspore
|
35 specimens | |||||||||
| (Nichols and Ott, 1978) | ||||||||||
|
Angiospermae
- Gunnerales
|
||||||||||
|
Tricolpites hians microspore
|
2-9 category | |||||||||
|
Angiospermae
- Proteales
- Proteaceae
|
||||||||||
|
Triporopollenites bituitus microspore
|
12 specimens | |||||||||
|
Triporopollenites informal sp. 1 microspore
Pflug and Thomson 1953
|
39 specimens | |||||||||
|
Angiospermae
- Liliaceae
|
||||||||||
|
Liliacidites spp. microspore
|
1 specimen | |||||||||
|
Magnoliopsida
|
||||||||||
|
Favitricolporites baculoferous microspore
|
2-9 category | |||||||||
|
Coniferales
|
||||||||||
|
Coniferales informal Bisaccate sp. 1 microspore
|
1 specimen | |||||||||
|
Coniferales informal Bisaccate spp. microspore
|
1 specimen | |||||||||
|
Coniferales
- Cupressaceae
|
||||||||||
|
Taxodium spp. microspore
|
32 specimens | |||||||||
|
Pinopsida
- Pinales
- Pinaceae
|
||||||||||
|
Pinuspollenites spp. microspore
|
1 specimen | |||||||||
|
Piceapollenites spp. microspore
|
1 specimen | |||||||||
|
Lycopodiopsida
- Lycopodiales
- Lycopodiaceae
|
||||||||||
|
Hamulatisporites amplus microspore
|
1 specimen | |||||||||
|
Lycopodiumsporites spp. microspore
|
2-9 category | |||||||||
|
Polypodiopsida
- Polypodiaceae
|
||||||||||
|
Verrucatosporites prosecundus microspore
|
2-9 category | |||||||||
|
Laevigatosporites spp. microspore
|
16 specimens | |||||||||
|
Polypodiopsida
- Gleicheniaceae
|
||||||||||
|
Gleicheniidites spp. microspore
|
1 specimen | |||||||||
|
Polypodiopsida
- Schizaeales
- Schizaeaceae
|
||||||||||
|
Cicatricosisporites dorogensis microspore
Potonie and Gelletich 1933
|
35 specimens | |||||||||
|
unclassified
|
||||||||||
|
Microreticulatisporites spp. microspore
|
1 specimen | |||||||||
|
Pteridopsida
|
||||||||||
|
Deltoidospora spp. microspore
|
18 specimens | |||||||||
|
Leiotriletes spp. microspore
|
5 specimens | |||||||||
|
Osmundacidites spp. microspore
|
1 specimen | |||||||||
|
unclassified
|
||||||||||
|
Converrucosisporites spp. microspore
|
1 specimen | |||||||||
|
Chlorophyceae
|
||||||||||
|
Pediastrum spp. microspore
|
3 specimens | |||||||||
|
unclassified
|
||||||||||
|
Schizosporis spp. microspore
|
15 specimens | |||||||||
|
Tricolpopollenites informal sp. <20 micrometers microspore
Thomson and Pflug 1953
|
1 specimen | |||||||||
|
Tricolpopollenites spp. microspore
|
1 specimen | |||||||||
|
Quercoidites spp. microspore
|
2-9 category | |||||||||
| 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 |
| 10 m.y. bin: | Cenozoic 2-3 | ||
| Key time interval: | Eocene | ||
| Age range of interval: | 56.00000 - 33.90000 m.y. ago |
Stratigraphy
| 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: | 33772 | ||
| Authorizer: | H. Sims | Enterer: | A. McGowan |
| Modifier: | A. McGowan | Research group: | paleobotany |
| Created: | 2003-08-07 07:38:55 | Last modified: | 2003-08-11 10:05:00 |
| Access level: | the public | Released: | 2003-08-07 07:38:55 |
| 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] |