Where: Allen County, Louisiana (30.0° N, 92.0° W: paleocoordinates 31.6° N, 81.0° W)
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 33801: 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 | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Lacrimasporonites | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Divisisporites | |
Divisisporites spp. Thomson 1952 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Pteridopsida | |
Leiotriletes spp. Potonie and Kremp 1954
Deltoidospora spp. Miner 1935
Osmundacidites spp. Couper 1953 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Verrucatosporites spp. Pflug and Thomson 1953
Laevigatosporites spp. Ibrahim 1933 | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
unclassified | |
Magnoliopsida | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Taxodium spp. Richard 1810 cypress | |
Angiospermae | |
Arecipites spp. Nichols et al. 1973 palm | |
Liliacidites spp. Couper 1953 | |
Triporopollenites "sp. 1" Pflug and Thomson 1953
Triporopollenites spp. Pflug and Thomson 1953 | |
Trudopollis spp. Pflug 1953 | |
Margocolporites kruschii legume | |
Momipites "sp. 1", Momipites "sp. 2", Momipites spp., Pterocaryapollenites spp., Caryapollenites "prodromus-imparalis type", Caryapollenites "sp. <29 micrometers"
Momipites "sp. 1" Wodehouse 1933
Momipites "sp. 2" Wodehouse 1933
Momipites spp. Wodehouse 1933
Pterocaryapollenites spp. Thiergart
Caryapollenites "sp. <29 micrometers" Potonié 1960 | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 |