Where: Allen County, Louisiana (30.0° N, 92.0° W: paleocoordinates 31.6° N, 81.0° W)
• small collection-level geographic resolution
When: Wilcox Group, Eocene (56.0 - 33.9 Ma)
• 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.
• bed-level stratigraphic resolution
Environment/lithology: deltaic; siltstone and shale
Size class: microfossils
Preservation: original chitin, original sporopollenin
Collection methods: core, chemical,
Primary reference: 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]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 33838: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003, edited by Jason Cassara
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Calamuspollenites spp., Casurinidites pulcher, Casurinidites "sp. 1", Pistillipollenites mcgregorii, Spinaepollis spinosus, Kyandopollenites anneratus, Nudopollis terminalis, Thompsonipollis magnificus, Cyathedites spp., Sterisporites buchenauensis, Sterisporites bujargensis, Porocolpopollenites spp., Quadrapollenites "sp. 1"
| |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933
Microfoveolatosporites spp. Nakoman 1966 | |
Polypodium spp. Linnaeus 1753
Laevigatosporites spp. Ibrahim 1933
Verrucatosporites spp. Pflug and Thomson 1953 | |
Pteridopsida | |
Osmundacidites spp. Couper 1953
Leiotriletes spp. Potonie and Kremp 1954 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Divisisporites | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
unclassified | |
Magnoliopsida | |
Angiospermae | |
Caryapollenites "sp. <29 micrometers" Potonié 1960
Pterocaryapollenites spp. Thiergart
Momipites "sp. 1" Wodehouse 1933
Momipites spp. Wodehouse 1933 | |
Alnipollenites trina birch | |
Margocolporites kruschii legume | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Bombacacidites spp. Couper 1960 | |
Trudopollis spp. Pflug 1953 | |
Cercidiphyllites spp. Mtchedlishvili 1961 | |
Triporopollenites spp. Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Piceapollenites spp. Potonié
Pinuspollenites spp. Raatz 1938 | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 |