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 33829: 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 | |
Calamuspollenites spp., Casurinidites pulcher, Pistillipollenites mcgregorii, Spinaepollis spinosus, Nudopollis terminalis, Thompsonipollis magnificus, Cyathedites spp., Sterisporites buchenauensis, Sterisporites bujargensis, Sterisporites spp., Sterisporites steroides, Pesavis tagulensis, Pleuricellaesporites spp.
| |
Lycopodiopsida | |
Hamulatisporites spp. Nakoman 1966 clubmoss
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Triplanosporites | |
Triplanosporites spp. Pflug 1953 | |
Pteridopsida | |
Osmundacidites spp. Couper 1953 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Laevigatosporites spp. Ibrahim 1933
Verrucatosporites spp. Pflug and Thomson 1953 | |
Divisisporites | |
Divisisporites spp. Thomson 1952 | |
unclassified | |
Angiospermae | |
Bombacacidites spp. Couper 1960 | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Margocolporites kruschii legume | |
Caryapollenites "sp. <29 micrometers" Potonié 1960
Caryapollenites spp. Potonié 1960
Momipites spp. Wodehouse 1933 | |
Triporopollenites spp. Pflug and Thomson 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Liliacidites spp. Couper 1953 | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938
Piceapollenites spp. Potonié | |
Magnoliopsida | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Tricolpopollenites spp. Thomson and Pflug 1953 |