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.
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 33789: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Calamuspollenites spp., Casurinidites pulcher, Pistillipollenites mcgregorii, Porocolpopollenites spp., Quadrapollenites "sp. 1", Spinaepollis spinosus, Nudopollis terminalis, Thompsonipollis magnificus, Sterisporites buchenauensis, Sterisporites bujargensis, Sterisporites bimammatus, Sterisporites steroides, Pleuricellaesporites spp., Fungi "Fungal spore spp."
Fungi "Fungal spore spp." Jahn and Jahn 1959 | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Lacrimasporonites | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Dicellaesporites | |
Dicellaesporites spp. Elsik | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Angiospermae | |
Bombacacidites spp. Couper 1960 | |
Momipites spp., Caryapollenites "prodromus-imparalis type", Caryapollenites "sp. <29 micrometers", Caryapollenites spp., Platycaryapollenites platycaryoides, Pterocaryapollenites spp.
Momipites spp. Wodehouse 1933
Caryapollenites "sp. <29 micrometers" Potonié 1960
Caryapollenites spp. Potonié 1960
Pterocaryapollenites spp. Thiergart | |
Cupuliferoipollenites spp. Potonié | |
Alnipollenites trina birch | |
Margocolporites kruschii legume | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Piceapollenites spp. Potonié
Pinuspollenites spp. Raatz 1938 | |
Magnoliopsida | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Lycopodiopsida | |
Hamulatisporites spp. Nakoman 1966 clubmoss | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Pteridopsida | |
Osmundacidites spp. Couper 1953
Leiotriletes spp. Potonie and Kremp 1954
Deltoidospora spp. Miner 1935 | |
Polypodiopsida | |
Laevigatosporites spp. Ibrahim 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Divisisporites | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 | |
Quercoidites | |
Quercoidites spp. Potonié 1960 |