Where: Allen County, Louisiana (30.0° N, 92.0° W: paleocoordinates 31.6° N, 81.0° W)
• small collection-level geographic resolution
When: 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
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 33766: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Divisisporites | |
Magnoliopsida | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Angiospermae | |
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Cupuliferoipollenites spp. Potonié | |
Momipites spp. Wodehouse 1933 | |
Bombacacidites spp. Couper 1960 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Pteridopsida | |
Deltoidospora spp. Miner 1935
Osmundacidites spp. Couper 1953
Leiotriletes spp. Potonie and Kremp 1954 | |
Polypodiopsida | |
Verrucatosporites spp. Pflug and Thomson 1953
Laevigatosporites spp. Ibrahim 1933
Polypodium spp. Linnaeus 1753 | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Fusiformisporites | |
Quercoidites | |
Quercoidites spp. Potonié 1960 | |
Tricolpopollenites | |
Tricolpopollenites spp. Thomson and Pflug 1953 |