Ragley Lumber #D1 well - 12472ft: Eocene, Louisiana

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
1 specimen
9 specimens
2-9 category
35 specimens
2-9 category
1 specimen
2 specimens
Tiliaepollenites spp. microspore Potonié 1931
1 specimen
1 specimen
1 specimen
2-9 category
4 specimens
1 specimen
1 specimen
1 specimen
Lycopodiopsida - Lycopodiales - Lycopodiaceae
Hamulatisporites spp. microspore Nakoman 1966
1 specimen
Angiospermae - Liliaceae
Liliacidites spp. microspore Couper 1953
2-9 category
Angiospermae - Proteales - Proteaceae
7 specimens
29 specimens
Angiospermae - Gunnerales
Tricolpites hians microspore
1 specimen
Angiospermae - Fabales - Fabaceae
1 specimen
Angiospermae - Fagales - Juglandaceae
Momipites spp. microspore Wodehouse 1933
1 specimen
1 specimen
6 specimens
(Nichols and Ott, 1978)
2-9 category
Angiospermae - Fagales - Fagaceae
Cupuliferoipollenites spp. microspore Potonié
1 specimen
Pinopsida - Pinales - Pinaceae
Piceapollenites spp. microspore Potonié
1 specimen
Pinuspollenites spp. microspore Raatz 1938
2 specimens
Coniferales
6 specimens
Coniferales - Cupressaceae
Taxodium spp. microspore Richard 1810
25 specimens
Coniferales - Podocarpaceae
Podocarpus spp. microspore L'Heritier and Persoon 1807
1 specimen
unclassified
Converrucosisporites spp. microspore Potonié and Kremp 1954
1 specimen
Polypodiopsida - Schizaeales - Schizaeaceae
Cicatricosisporites dorogensis microspore Potonie and Gelletich 1933
9 specimens
Polypodiopsida - Polypodiaceae
Verrucatosporites spp. microspore Pflug and Thomson 1953
1 specimen
Laevigatosporites spp. microspore Ibrahim 1933
26 specimens
Polypodiopsida - Gleicheniaceae
Gleicheniidites spp. microspore Dettmann 1963
5 specimens
unclassified
Microreticulatisporites spp. microspore Potonié and Kremp 1954
2 specimens
Pteridopsida
Osmundacidites spp. microspore Couper 1953
1 specimen
Deltoidospora spp. microspore Miner 1935
7 specimens
Leiotriletes spp. microspore Potonie and Kremp 1954
3 specimens
unclassified
Tracheophyta informal Pollen spp. microspore Sinnott 1935
1 specimen
3 specimens
Divisisporites spp. microspore Thomson 1952
1 specimen
Schizosporis spp. microspore Cookson and Dettmann 1959
7 specimens
Chlorophyceae
Pediastrum spp. microspore Meyen 1829
18 specimens
unclassified
4 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)
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:-12472ft
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: siltstone
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:33793
Authorizer:H. Sims Enterer:A. McGowan, J. Cassara
Modifier:A. McGowan Research group:paleobotany
Created:2003-08-07 08:23:32 Last modified:2025-02-22 15:12:02
Access level:the public Released:2003-08-07 08:23:32
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]