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
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 33840: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Dicellaesporites | |
Dicellaesporites spp. Elsik | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Pteridopsida | |
Osmundacidites spp. Couper 1953 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Laevigatosporites spp. Ibrahim 1933 | |
Microfoveolatosporites spp. Nakoman 1966
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss
Hamulatisporites spp. Nakoman 1966 clubmoss | |
unclassified | |
Taxodium spp. Richard 1810 cypress | |
Podocarpus spp. L'Heritier and Persoon 1807 podocarp | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Magnoliopsida | |
Angiospermae | |
Triporopollenites spp. Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Alnipollenites verus Potonie 1931 birch | |
Caryapollenites "sp. <29 micrometers" Potonié 1960 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Tricolpopollenites | |
Tricolpopollenites spp. Thomson and Pflug 1953 |