Ragley Lumber #D1 well - 12784ft: Eocene, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Casurinidites pulcher microspore
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9 specimens | |||||||||
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Casurinidites informal sp. 1 microspore
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1 specimen | |||||||||
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Spinaepollis spinosus microspore
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1 specimen | |||||||||
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Tiliaepollenites spp. microspore
Potonié 1931
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1 specimen | |||||||||
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Ulmipollenites spp. microspore
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1 specimen | |||||||||
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Kyandopollenites anneratus microspore
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1 specimen | |||||||||
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Nudopollis terminalis microspore
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1 specimen | |||||||||
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Thompsonipollis magnificus microspore
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39 specimens | |||||||||
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Sterisporites buchenauensis microspore
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1 specimen | |||||||||
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Sterisporites bujargensis microspore
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11 specimens | |||||||||
| 1 specimen | ||||||||||
| 1 specimen | ||||||||||
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Quadrapollenites informal sp. 1 microspore
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1 specimen | |||||||||
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Diporicellaesporites spp.
Elsik 1968
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1 specimen | |||||||||
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Dyadosporonites spp.
(Hammen)
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1 specimen | |||||||||
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Inapertisporites spp.
Hammen
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3 specimens | |||||||||
| 1 specimen | ||||||||||
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Algae
- Zygnemataceae
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Ovoidites spp. microspore
Krutzsch 1959
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1 specimen | |||||||||
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unclassified
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Spermatophyta informal Pollen spp. microspore
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8 specimens | |||||||||
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Pinopsida
- Pinales
- Pinaceae
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Pinuspollenites spp. microspore
Raatz 1938
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4 specimens | |||||||||
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Coniferales
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Coniferales informal Bisaccate spp. microspore
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4 specimens | |||||||||
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Coniferales
- Cupressaceae
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Taxodium spp. microspore
Richard 1810
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22 specimens | |||||||||
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Magnoliopsida
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Basopollis obscurocostatus microspore
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1 specimen | |||||||||
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Favitricolporites baculoferous microspore
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1 specimen | |||||||||
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Angiospermae
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Pseudoplicapollis informal sp. A microspore
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1 specimen | |||||||||
| (Tschudy, 1975) | ||||||||||
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Trudopollis spp. microspore
Pflug 1953
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1 specimen | |||||||||
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Angiospermae
- Fagales
- Juglandaceae
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Pterocaryapollenites spp. microspore
Thiergart
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1 specimen | |||||||||
| 14 specimens | ||||||||||
| (Nichols and Ott, 1978) | ||||||||||
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Caryapollenites informal sp. <29 micrometers microspore
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6 specimens | |||||||||
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Momipites informal sp. 1 microspore
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1 specimen | |||||||||
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Momipites informal sp. 2 microspore
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2-9 category | |||||||||
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Momipites spp. microspore
Wodehouse 1933
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3 specimens | |||||||||
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Angiospermae
- Fabales
- Fabaceae
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Margocolporites kruschii microspore
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3 specimens | |||||||||
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Angiospermae
- Gunnerales
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Tricolpites hians microspore
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1 specimen | |||||||||
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Angiospermae
- Proteales
- Proteaceae
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Triporopollenites bituitus microspore
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10 specimens | |||||||||
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Triporopollenites informal sp. 1 microspore
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18 specimens | |||||||||
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Triporopollenites spp. microspore
Pflug and Thomson 1953
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17 specimens | |||||||||
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Angiospermae
- Arecaceae
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Arecipites spp. microspore
Nichols et al. 1973
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2-9 category | |||||||||
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Angiospermae
- Liliaceae
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Liliacidites spp. microspore
Couper 1953
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1 specimen | |||||||||
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unclassified
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Divisisporites spp. microspore
Thomson 1952
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1 specimen | |||||||||
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Converrucosisporites spp. microspore
Potonié and Kremp 1954
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1 specimen | |||||||||
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Polypodiopsida
- Gleicheniaceae
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Gleicheniidites spp. microspore
Dettmann 1963
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1 specimen | |||||||||
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Polypodiopsida
- Schizaeales
- Schizaeaceae
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Cicatricosisporites dorogensis microspore
Potonie and Gelletich 1933
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1 specimen | |||||||||
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Polypodiopsida
- Polypodiaceae
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Verrucatosporites spp. microspore
Pflug and Thomson 1953
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1 specimen | |||||||||
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Laevigatosporites spp. microspore
Ibrahim 1933
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21 specimens | |||||||||
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Pteridopsida
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Deltoidospora spp. microspore
Miner 1935
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16 specimens | |||||||||
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Leiotriletes spp. microspore
Potonie and Kremp 1954
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6 specimens | |||||||||
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Osmundacidites spp. microspore
Couper 1953
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1 specimen | |||||||||
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unclassified
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Microreticulatisporites spp. microspore
Potonié and Kremp 1954
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1 specimen | |||||||||
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Lycopodiopsida
- Lycopodiales
- Lycopodiaceae
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Lycopodiumsporites spp. microspore
Delcourt and Sprumont 1955
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1 specimen | |||||||||
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unclassified
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Schizosporis spp. microspore
Cookson and Dettmann 1959
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9 specimens | |||||||||
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Chlorophyceae
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Pediastrum spp. microspore
Meyen 1829
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4 specimens | |||||||||
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unclassified
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| 1 specimen | ||||||||||
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Tricolpopollenites spp. microspore
Thomson and Pflug 1953
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4 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Louisiana | County: | Allen |
| Coordinates: | 30.0° North, 92.0° West (view map) | ||||
| Paleocoordinates: | 34.5° North, 72.7° West (Wright 2013) |
Time
| Period: | Paleogene | Epoch: | Eocene |
| 10 m.y. bin: | Cenozoic 2-3 | ||
| Key time interval: | Eocene | ||
| Age range of interval: | 56 - 33.9 m.y. ago |
Stratigraphy
| Geological group: | Wilcox | ||||
| Local section: | Ragley Lumber Well #D1 | Local bed: | -12784ft | ||
| 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 |
| Spatial resolution: | allochthonous |
Collection methods and comments
| Collection methods: | core,chemical,field collection |
| Reason for describing collection: | paleoecologic analysis |
Metadata
| Database number: | 33801 | ||
| Authorizer: | H. Sims | Enterer: | A. McGowan, J. Cassara |
| Modifier: | A. McGowan | Research group: | paleobotany |
| Created: | 2003-08-07 08:38:38 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-08-07 08:38:38 |
| Creative Commons license: | CC0 |
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] |