Ragley Lumber #D1 well - 11154ft: Eocene, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Calamuspollenites spp. microspore
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1 specimen | |||||||||
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Casurinidites pulcher microspore
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2 specimens | |||||||||
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Pistillipollenites mcgregorii microspore
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1 specimen | |||||||||
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Porocolpopollenites spp. microspore
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1 specimen | |||||||||
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Spinaepollis spinosus microspore
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2-9 category | |||||||||
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Tiliaepollenites spp. microspore
Potonié 1931
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2-9 category | |||||||||
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Nudopollis aff. theirgartii 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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32 specimens | |||||||||
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Sterisporites bujargensis microspore
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1 specimen | |||||||||
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Sterisporites bimammatus microspore
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1 specimen | |||||||||
| 2 specimens | ||||||||||
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Monoporisporites spp.
Hammen
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1 specimen | |||||||||
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Diporisporites spp.
Elsik 1968
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1 specimen | |||||||||
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Dicellaesporites spp.
Elsik
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1 specimen | |||||||||
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Dicellaesporites popovii
Elsik 1968
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1 specimen | |||||||||
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Inapertisporites spp.
Hammen
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1 specimen | |||||||||
| 1 specimen | ||||||||||
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Dyadosporonites spp.
(Hammen)
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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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Lycopodiopsida
- Lycopodiales
- Lycopodiaceae
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Lycopodiumsporites spp. microspore
Delcourt and Sprumont 1955
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2-9 category | |||||||||
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Magnoliopsida
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Favitricolporites baculoferous microspore
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1 specimen | |||||||||
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Basopollis obscurocostatus microspore
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2 specimens | |||||||||
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Angiospermae
- Liliaceae
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Liliacidites spp. microspore
Couper 1953
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4 specimens | |||||||||
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Angiospermae
- Proteales
- Proteaceae
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Triporopollenites bituitus microspore
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4 specimens | |||||||||
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Triporopollenites informal sp. 1 microspore
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33 specimens | |||||||||
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Angiospermae
- Gunnerales
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Tricolpites hians microspore
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2 specimens | |||||||||
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Angiospermae
- Fabales
- Fabaceae
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Margocolporites kruschii microspore
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2 specimens | |||||||||
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Angiospermae
- Fagales
- Betulaceae
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Alnipollenites verus microspore
Potonie 1931
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2-9 category | |||||||||
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Angiospermae
- Fagales
- Juglandaceae
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Momipites spp. microspore
Wodehouse 1933
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1 specimen | |||||||||
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Platycaryapollenites platycaryoides microspore
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1 specimen | |||||||||
| 22 specimens | ||||||||||
| (Nichols and Ott, 1978) | ||||||||||
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Caryapollenites simplex microspore
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1 specimen | |||||||||
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Caryapollenites informal sp. <29 micrometers microspore
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1 specimen | |||||||||
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Caryapollenites spp. microspore
Potonié 1960
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3 specimens | |||||||||
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Angiospermae
- Fagales
- Fagaceae
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Cupuliferoipollenites spp. microspore
Potonié
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5 specimens | |||||||||
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Angiospermae
- Malpighiales
- Euphorbiaceae
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Tricolporopollenites spp. microspore
Thomson and Pflug 1953
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2 specimens | |||||||||
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Angiospermae
- Sapindales
- Sapindaceae
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Cupanieidites spp. microspore
Cookson and Pike 1954
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1 specimen | |||||||||
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Angiospermae
- Malvales
- Bombacaceae
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Bombacacidites spp. microspore
Couper 1960
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2 specimens | |||||||||
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Pinopsida
- Pinales
- Pinaceae
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Pinuspollenites spp. microspore
Raatz 1938
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1 specimen | |||||||||
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Coniferales
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Coniferales informal Bisaccate spp. microspore
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13 specimens | |||||||||
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Coniferales
- Cupressaceae
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Taxodium spp. microspore
Richard 1810
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42 specimens | |||||||||
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unclassified
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Converrucosisporites spp. microspore
Potonié and Kremp 1954
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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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9 specimens | |||||||||
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Polypodiopsida
- Polypodiaceae
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Verrucatosporites prosecundus microspore
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1 specimen | |||||||||
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Verrucatosporites spp. microspore
Pflug and Thomson 1953
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3 specimens | |||||||||
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Laevigatosporites spp. microspore
Ibrahim 1933
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14 specimens | |||||||||
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Polypodium spp. microspore
Linnaeus 1753
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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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unclassified
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Microreticulatisporites spp. microspore
Potonié and Kremp 1954
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1 specimen | |||||||||
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Pteridopsida
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Osmundacidites spp. microspore
Couper 1953
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4 specimens | |||||||||
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Deltoidospora spp. microspore
Miner 1935
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9 specimens | |||||||||
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Leiotriletes spp. microspore
Potonie and Kremp 1954
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3 specimens | |||||||||
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unclassified
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Divisisporites enormis microspore
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1 specimen | |||||||||
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Divisisporites spp. microspore
Thomson 1952
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1 specimen | |||||||||
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Ginkgoopsida
- Ephedrales
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Ephedripites voluta microspore
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2 specimens | |||||||||
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unclassified
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Schizosporis spp. microspore
Cookson and Dettmann 1959
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11 specimens | |||||||||
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Chlorophyceae
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Pediastrum spp. microspore
Meyen 1829
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3 specimens | |||||||||
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unclassified
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Quercoidites spp. microspore
Potonié 1960
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4 specimens | |||||||||
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Tricolpopollenites spp. microspore
Thomson and Pflug 1953
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7 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) | ||||
| 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 - 33.9 m.y. ago |
Stratigraphy
| Geological group: | Wilcox | ||||
| Local section: | Ragley Lumber Well #D1 | Local bed: | -11154 ft | ||
| 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: | 33768 | ||
| Authorizer: | H. Sims | Enterer: | A. McGowan |
| Modifier: | J. Alroy | Research group: | paleobotany |
| Created: | 2003-08-07 07:27:13 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-08-07 07:27:13 |
| 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] |