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 33837: 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 | |
Dicellaesporites | |
Dicellaesporites spp. Elsik | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
unclassified | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Podocarpus spp. L'Heritier and Persoon 1807 podocarp | |
Taxodium spp. Richard 1810 cypress | |
Angiospermae | |
Margocolporites kruschii legume | |
Caryapollenites "sp. <29 micrometers" Potonié 1960
Momipites spp. Wodehouse 1933 | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Liliacidites spp. Couper 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Triporopollenites spp. Pflug and Thomson 1953 | |
Lycopodiopsida | |
Hamulatisporites spp. Nakoman 1966 clubmoss | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Verrucatosporites spp. Pflug and Thomson 1953
Polypodium spp. Linnaeus 1753
Laevigatosporites spp. Ibrahim 1933 | |
Pteridopsida | |
Osmundacidites spp. Couper 1953 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 |