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 33783: 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 | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Lacrimasporonites | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Divisisporites | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Podocarpus spp. L'Heritier and Persoon 1807 podocarp | |
Taxodium spp. Richard 1810 cypress | |
Magnoliopsida | |
Angiospermae | |
Margocolporites kruschii legume | |
Alnipollenites trina birch
Alnipollenites verus Potonie 1931 birch | |
Momipites spp. Wodehouse 1933 | |
Cupuliferoipollenites spp. Potonié | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Liliacidites spp. Couper 1953 | |
Proteacidites spp. Cookson and Couper 1953
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Laevigatosporites spp. Ibrahim 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Pteridopsida | |
Osmundacidites spp. Couper 1953
Leiotriletes spp. Potonie and Kremp 1954
Deltoidospora spp. Miner 1935 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 |