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 33764: 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 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Divisisporites | |
Magnoliopsida | |
Angiospermae | |
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Margocolporites kruschii legume | |
Cupuliferoipollenites spp. Potonié | |
Momipites spp. Wodehouse 1933 | |
Alnipollenites verus Potonie 1931 birch | |
Bombacacidites spp. Couper 1960 | |
Taxodium spp. Richard 1810 cypress | |
Pteridopsida | |
Osmundacidites spp. Couper 1953
Deltoidospora spp. Miner 1935
Leiotriletes spp. Potonie and Kremp 1954 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Laevigatosporites spp. Ibrahim 1933 | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Dicellaesporites | |
Dicellaesporites spp. Elsik | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Quercoidites | |
Quercoidites spp. Potonié 1960 | |
Perotriletes | |
Perotriletes spp. Reyre 1966 |