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 33834: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
unclassified | |
Tracheophyta "Trilete spore spp.", Casurinidites pulcher, Casurinidites "sp. 1", Pistillipollenites mcgregorii, Porocolpopollenites spp., Spinaepollis spinosus, Ulmipollenites spp., Kyandopollenites anneratus, Nudopollis terminalis, Thompsonipollis magnificus, Cyathedites spp., Sterisporites buchenauensis, Sterisporites bujargensis, Brachysporites spp., Pesavis tagulensis, Pleuricellaesporites spp.
| |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
unclassified | |
Angiospermae | |
Bombacacidites spp. Couper 1960 | |
Margocolporites kruschii legume | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Alnipollenites trina birch | |
Cupuliferoipollenites spp. Potonié | |
Caryapollenites "sp. <29 micrometers" Potonié 1960
Momipites "sp. 1" Wodehouse 1933
Momipites spp. Wodehouse 1933 | |
Arecipites spp. Nichols et al. 1973 palm | |
Liliacidites spp. Couper 1953 | |
Triporopollenites "sp. 1" Pflug and Thomson 1953
Triporopollenites spp. Pflug and Thomson 1953 | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Magnoliopsida | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Verrucatosporites spp. Pflug and Thomson 1953
Laevigatosporites spp. Ibrahim 1933 | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Lycopodiopsida | |
Hamulatisporites spp. Nakoman 1966 clubmoss
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Diporisporites | |
Diporisporites "sp. 2" Elsik 1968
Diporisporites spp. Elsik 1968 | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Lacrimasporonites | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 |