Where: Allen County, Louisiana (30.0° N, 92.0° W)
• Paleocoordinates: 34.5° N, 72.7° W (Wright 2013)
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.
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 33761: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC0 (CC0)
Taxonomic list
unclassified | |
Taxodium spp. Richard 1810 cypress | |
Magnoliopsida | |
Angiospermae | |
Triporopollenites sp. Pflug and Thomson 1953 | |
Bombacacidites spp. Couper 1960 | |
Momipites spp. Wodehouse 1933 | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Pteridopsida | |
Deltoidospora spp. Miner 1935
Leiotriletes spp. Potonie and Kremp 1954
Osmundacidites spp. Couper 1953 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Laevigatosporites spp. Ibrahim 1933 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Tricolpopollenites | |
Tricolpopollenites spp. Thomson and Pflug 1953 | |
Quercoidites | |
Quercoidites spp. Potonié 1960 |