Where: Allen County, Louisiana (30.0° N, 92.0° W)
• Paleocoordinates: 34.5° N, 72.7° W (Wright 2013)
• 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 33759: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC0 (CC0)
Taxonomic list
unclassified | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Lacrimasporonites | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Magnoliopsida | |
Podocarpus spp. L'Heritier and Persoon 1807 podocarp | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Angiospermae | |
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Dicotyledoneae | |
Ericipites spp. Wodehouse 1933 heather | |
Angiospermae | |
Bombacacidites spp. Couper 1960 | |
Margocolporites kruschii legume | |
Alnipollenites verus Potonie 1931 birch | |
Caryapollenites "prodromus-imparalis type", Caryapollenites spp., Platycaryapollenites platycaryoides, Momipites spp.
Caryapollenites spp. Potonié 1960
Momipites spp. Wodehouse 1933 | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Pteridopsida | |
Leiotriletes spp. Potonie and Kremp 1954
Deltoidospora spp. Miner 1935
Osmundacidites spp. Couper 1953 | |
Divisisporites | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Quercoidites | |
Quercoidites spp. Potonié 1960 | |
Tricolpopollenites | |
Tricolpopollenites spp. Thomson and Pflug 1953 |