Ragley Lumber #D1 well - 10685ft: Eocene, Louisiana
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Chlorophyceae
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Pediastrum spp. microspore
Meyen 1829
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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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3 specimens | |||||||||
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Polypodiopsida
- Schizaeales
- Schizaeaceae
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Cicatricosisporites dorogensis microspore
Potonie and Gelletich 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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Polypodiopsida
- Polypodiaceae
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Laevigatosporites spp. microspore
Ibrahim 1933
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25 specimens | |||||||||
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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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Pteridopsida
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Osmundacidites spp. microspore
Couper 1953
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3 specimens | |||||||||
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Leiotriletes spp. microspore
Potonie and Kremp 1954
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8 specimens | |||||||||
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Deltoidospora spp. microspore
Miner 1935
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6 specimens | |||||||||
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unclassified
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Microfoveolatosporis pseudodentatus microspore
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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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Lycopodophyta informal Trilete spore spp. microspore
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3 specimens | |||||||||
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Divisisporites enormis microspore
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7 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
- Malpighiales
- Euphorbiaceae
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Tricolporopollenites spp. microspore
Thomson and Pflug 1953
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1 specimen | |||||||||
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Angiospermae
- Fagales
- Juglandaceae
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| 2-9 category | ||||||||||
| (Nichols and Ott, 1978) | ||||||||||
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Caryapollenites informal sp. 29 micrometers microspore
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1 specimen | |||||||||
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Momipites spp. microspore
Wodehouse 1933
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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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1 specimen | |||||||||
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Angiospermae
- Liliaceae
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Liliacidites spp. microspore
Couper 1953
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5 specimens | |||||||||
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Angiospermae
- Aquifoliales
- Aquifoliaceae
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Ilexpollenites spp. microspore
Thiergart 1937
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2-9 category | |||||||||
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Angiospermae
- Saxifragales
- Cercidiphyllaceae
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Cercidiphyllites spp. microspore
Mtchedlishvili 1961
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1 specimen | |||||||||
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Angiospermae
- Proteales
- Proteaceae
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Triporopollenites informal sp. 1 microspore
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58 specimens | |||||||||
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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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Coniferales
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Coniferales informal Bisaccate sp. 1 microspore
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10 specimens | |||||||||
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Coniferales
- Cupressaceae
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Taxodium spp. microspore
Richard 1810
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1 specimen | |||||||||
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unclassified
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Casurinidites pulcher microspore
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1 specimen | |||||||||
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Extratriporopollenites spp. microspore
Pflug 1953
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1 specimen | |||||||||
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Nudopollis terminalis microspore
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11 specimens | |||||||||
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Thompsonipollis magnificus microspore
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34 specimens | |||||||||
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Sterisporites bimammatus microspore
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2 specimens | |||||||||
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Inapertisporites spp.
Hammen
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1 specimen | |||||||||
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Perotriletes spp. microspore
Reyre 1966
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1 specimen | |||||||||
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Tricolpopollenites geranoides microspore
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1 specimen | |||||||||
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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 | ||
| *Period: | Early/Lower Tertiary - Early/Lower Tertiary | *Epoch: | Eocene - Eocene | *Local age/stage: | Clairbornian - Clairbornian |
| Key time interval: | Eocene | ||
| Age range of interval: | 56 - 33.9 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Wilcox | ||||
| Stratigraphy comments: 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
| Lithology description: """"50 siltstones and shale samples"""" - individual sample lithology not specified | |||
| Environment: | deltaic indet. | Tectonic setting: | passive margin |
| Geology comments: Although the authors discuss prodelta and delta front as depositional environments, they do not specify explicitly which they choose. The most specific correct entry is thus selected here. | |||
Taphonomy
| Modes of preservation: | original chitin,original sporopollenin |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection methods: | core,chemical |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: Author uses 'r' to denote 'single occurrence' and 's' to denote '1
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