Ragley Lumber #D1 well - 12292ft: 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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19 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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Quadrapollenites informal sp. 1 microspore
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2-9 category | |||||||||
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Spinaepollis spinosus microspore
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3 specimens | |||||||||
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Nudopollis terminalis microspore
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1 specimen | |||||||||
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Thompsonipollis magnificus microspore
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27 specimens | |||||||||
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Sterisporites buchenauensis microspore
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5 specimens | |||||||||
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Sterisporites bujargensis microspore
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4 specimens | |||||||||
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Sterisporites bimammatus microspore
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1 specimen | |||||||||
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Sterisporites steroides microspore
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1 specimen | |||||||||
| 1 specimen | ||||||||||
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Tiliaepollenites spp. microspore
Potonié 1931
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1 specimen | |||||||||
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Fungi informal Fungal spore spp.
Jahn and Jahn 1959
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1 specimen | |||||||||
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Monoporisporites spp.
Hammen
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1 specimen | |||||||||
| 1 specimen | ||||||||||
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Dicellaesporites spp.
Elsik
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1 specimen | |||||||||
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Inapertisporites spp.
Hammen
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1 specimen | |||||||||
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Diporicellaesporites spp.
Elsik 1968
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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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Hamulatisporites spp. microspore
Nakoman 1966
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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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1 specimen | |||||||||
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Angiospermae
- Arecaceae
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Arecipites spp. microspore
Nichols et al. 1973
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1 specimen | |||||||||
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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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Angiospermae
- Proteales
- Proteaceae
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Triporopollenites bituitus microspore
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18 specimens | |||||||||
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Triporopollenites informal sp. 1 microspore
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42 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
- Fabales
- Fabaceae
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Margocolporites kruschii microspore
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1 specimen | |||||||||
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Angiospermae
- Fagales
- Betulaceae
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Alnipollenites trina microspore
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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 | |||||||||
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Momipites spp. microspore
Wodehouse 1933
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2 specimens | |||||||||
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Platycaryapollenites platycaryoides microspore
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1 specimen | |||||||||
| 7 specimens | ||||||||||
| (Nichols and Ott, 1978) | ||||||||||
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Caryapollenites informal sp. <29 micrometers microspore
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3 specimens | |||||||||
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Caryapollenites spp. microspore
Potonié 1960
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2 specimens | |||||||||
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Angiospermae
- Fagales
- Fagaceae
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Cupuliferoipollenites spp. microspore
Potonié
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1 specimen | |||||||||
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Angiospermae
- Malpighiales
- Euphorbiaceae
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Tricolporopollenites spp. microspore
Thomson and Pflug 1953
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20 specimens | |||||||||
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Angiospermae
- Malvales
- Bombacaceae
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Bombacacidites spp. microspore
Couper 1960
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1 specimen | |||||||||
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Pinopsida
- Pinales
- Pinaceae
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Piceapollenites spp. microspore
Potonié
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1 specimen | |||||||||
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Pinuspollenites spp. microspore
Raatz 1938
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9 specimens | |||||||||
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Coniferales
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Coniferales informal Bisaccate spp. microspore
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16 specimens | |||||||||
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Coniferales
- Cupressaceae
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Taxodium spp. microspore
Richard 1810
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32 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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2-9 category | |||||||||
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Polypodiopsida
- Polypodiaceae
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Laevigatosporites spp. microspore
Ibrahim 1933
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22 specimens | |||||||||
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Polypodiopsida
- Gleicheniaceae
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Gleicheniidites spp. microspore
Dettmann 1963
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2 specimens | |||||||||
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Pteridopsida
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Osmundacidites spp. microspore
Couper 1953
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2 specimens | |||||||||
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Deltoidospora spp. microspore
Miner 1935
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18 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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3 specimens | |||||||||
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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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7 specimens | |||||||||
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unclassified
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Quercoidites spp. microspore
Potonié 1960
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1 specimen | |||||||||
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Tricolpopollenites geranoides microspore
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1 specimen | |||||||||
| 2 specimens | ||||||||||
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Tricolpopollenites spp. microspore
Thomson and Pflug 1953
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1 specimen | |||||||||
| 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: | -12292ft | ||
| 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: | 33789 | ||
| Authorizer: | H. Sims | Enterer: | A. McGowan |
| Modifier: | A. McGowan | Research group: | paleobotany |
| Created: | 2003-08-07 08:15:28 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-08-07 08:15:28 |
| 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] |