Ragley Lumber #D1 well - 12139ft: 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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1 specimen | |||||||||
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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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7 specimens | |||||||||
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Ulmipollenites spp. 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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8 specimens | |||||||||
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Sterisporites buchenauensis microspore
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2-9 category | |||||||||
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Sterisporites spp. microspore
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5 specimens | |||||||||
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Sterisporites steroides microspore
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2-9 category | |||||||||
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Sequoidendron spp. microspore
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1 specimen | |||||||||
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Pleuricellaesporites spp.
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2-9 category | |||||||||
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Tiliaepollenites 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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Microreticulatisporites spp. microspore
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1 specimen | |||||||||
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Polypodiopsida
- Polypodiaceae
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Laevigatosporites spp. microspore
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12 specimens | |||||||||
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Verrucatosporites prosecundus microspore
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5 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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8 specimens | |||||||||
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Pteridopsida
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Leiotriletes spp. microspore
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4 specimens | |||||||||
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Deltoidospora spp. microspore
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14 specimens | |||||||||
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Angiospermae
- Arecaceae
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Arecipites spp. microspore
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1 specimen | |||||||||
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Angiospermae
- Liliaceae
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Liliacidites 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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1 specimen | |||||||||
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Angiospermae
- Proteales
- Proteaceae
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Triporopollenites bituitus microspore
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11 specimens | |||||||||
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Triporopollenites informal sp. 1 microspore
Pflug and Thomson 1953
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44 specimens | |||||||||
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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
- Fagaceae
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Cupuliferoipollenites spp. microspore
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2 specimens | |||||||||
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Angiospermae
- Fagales
- Juglandaceae
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Platycaryapollenites platycaryoides microspore
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2 specimens | |||||||||
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Caryapollenites informal prodromus-imparalis type microspore
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21 specimens | |||||||||
| (Nichols and Ott, 1978) | ||||||||||
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Caryapollenites informal sp. <29 micrometers microspore
Potonié 1960
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4 specimens | |||||||||
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Caryapollenites spp. microspore
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1 specimen | |||||||||
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Momipites spp. microspore
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8 specimens | |||||||||
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Angiospermae
- Malvales
- Bombacaceae
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Bombacacidites spp. microspore
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1 specimen | |||||||||
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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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2 specimens | |||||||||
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Pinopsida
- Pinales
- Pinaceae
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Piceapollenites spp. microspore
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1 specimen | |||||||||
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Pinuspollenites spp. microspore
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9 specimens | |||||||||
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Coniferales
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Coniferales informal Bisaccate spp. microspore
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15 specimens | |||||||||
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Coniferales
- Cupressaceae
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Taxodium spp. microspore
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42 specimens | |||||||||
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Coniferales
- Podocarpaceae
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Podocarpus spp. microspore
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1 specimen | |||||||||
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Algae
- Zygnemataceae
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Ovoidites spp. microspore
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4 specimens | |||||||||
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unclassified
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Cedripites spp. microspore
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1 specimen | |||||||||
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Divisisporites enormis microspore
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3 specimens | |||||||||
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Lycopodiopsida
- Lycopodiales
- Lycopodiaceae
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Lycopodiumsporites spp. microspore
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1 specimen | |||||||||
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Chlorophyceae
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Pediastrum spp. microspore
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12 specimens | |||||||||
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unclassified
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Schizosporis spp. microspore
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8 specimens | |||||||||
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Monoporisporites informal sp., lagenid
Hammen
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1 specimen | |||||||||
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Diporisporites informal sp. 1
Elsik 1968
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1 specimen | |||||||||
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Diporisporites informal type 2
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1 specimen | |||||||||
| (Elsik and Dilcher, 1974) | ||||||||||
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Inapertisporites spp.
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1 specimen | |||||||||
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Diporicellaesporites spp.
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1 specimen | |||||||||
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Fusiformisporites crabbii
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1 specimen | |||||||||
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Tricolpopollenites informal sp. <20 micrometers microspore
Thomson and Pflug 1953
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8 specimens | |||||||||
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Tricolpopollenites spp. microspore
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2 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: | -12319ft | ||
| 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: | 33786 | ||
| Authorizer: | H. Sims | Enterer: | A. McGowan |
| Modifier: | A. McGowan | Research group: | paleobotany |
| Created: | 2003-08-07 08:08:25 | Last modified: | 2003-08-11 15:54:17 |
| Access level: | the public | Released: | 2003-08-07 08:08:25 |
| 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] |