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
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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 | |||||||||
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Pleuricellaesporites spp.
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2 specimens | |||||||||
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Monoporisporites spp.
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1 specimen | |||||||||
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Dyadosporonites spp.
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1 specimen | |||||||||
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Fusiformisporites crabbii
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1 specimen | |||||||||
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Dicellaesporites spp.
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1 specimen | |||||||||
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Dicellaesporites popovii
Elsik 1968
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1 specimen | |||||||||
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Diporisporites spp.
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1 specimen | |||||||||
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Inapertisporites spp.
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1 specimen | |||||||||
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Schizosporis spp. microspore
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11 specimens | |||||||||
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Chlorophyceae
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Pediastrum spp. microspore
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3 specimens | |||||||||
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Angiospermae
- Sapindales
- Sapindaceae
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Cupanieidites spp. microspore
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1 specimen | |||||||||
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Angiospermae
- Malvales
- Bombacaceae
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Bombacacidites spp. microspore
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2 specimens | |||||||||
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Angiospermae
- Fagales
- Juglandaceae
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Momipites spp. microspore
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1 specimen | |||||||||
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Caryapollenites informal prodromus-imparalis type microspore
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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
Potonié 1960
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1 specimen | |||||||||
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Caryapollenites spp. microspore
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3 specimens | |||||||||
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Platycaryapollenites platycaryoides microspore
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1 specimen | |||||||||
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Angiospermae
- Fagales
- Fagaceae
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Cupuliferoipollenites spp. microspore
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5 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
- Fabales
- Fabaceae
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Margocolporites kruschii microspore
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2 specimens | |||||||||
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Angiospermae
- Malpighiales
- Euphorbiaceae
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Tricolporopollenites spp. microspore
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2 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
- Proteales
- Proteaceae
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Triporopollenites bituitus microspore
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4 specimens | |||||||||
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Triporopollenites informal sp. 1 microspore
Pflug and Thomson 1953
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33 specimens | |||||||||
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Angiospermae
- Liliaceae
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Liliacidites spp. microspore
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4 specimens | |||||||||
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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
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42 specimens | |||||||||
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Pinopsida
- Pinales
- Pinaceae
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Pinuspollenites spp. microspore
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1 specimen | |||||||||
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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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Algae
- Zygnemataceae
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Ovoidites spp. microspore
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1 specimen | |||||||||
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Lycopodiopsida
- Lycopodiales
- Lycopodiaceae
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Lycopodiumsporites spp. microspore
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2-9 category | |||||||||
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unclassified
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Microreticulatisporites spp. microspore
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1 specimen | |||||||||
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Converrucosisporites spp. microspore
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1 specimen | |||||||||
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Pteridopsida
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Osmundacidites spp. microspore
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4 specimens | |||||||||
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Leiotriletes spp. microspore
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3 specimens | |||||||||
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Deltoidospora spp. microspore
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9 specimens | |||||||||
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Polypodiopsida
- Polypodiaceae
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Laevigatosporites spp. microspore
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14 specimens | |||||||||
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Polypodium spp. microspore
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1 specimen | |||||||||
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Verrucatosporites prosecundus microspore
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1 specimen | |||||||||
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Verrucatosporites spp. microspore
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3 specimens | |||||||||
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Polypodiopsida
- Gleicheniaceae
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Gleicheniidites spp. microspore
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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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unclassified
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Divisisporites enormis microspore
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1 specimen | |||||||||
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Divisisporites spp. microspore
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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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Tricolpopollenites spp. microspore
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7 specimens | |||||||||
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Quercoidites spp. microspore
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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: | 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
| 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: | 2004-03-10 11:51:57 |
| Access level: | the public | Released: | 2003-08-07 07:27:13 |
| 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] |