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 33818: 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 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Schizosporis | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss
Hamulatisporites amplus clubmoss
Hamulatisporites spp. Nakoman 1966 clubmoss | |
unclassified | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938
Piceapollenites spp. Potonié | |
Taxodium spp. Richard 1810 cypress | |
Podocarpus spp. L'Heritier and Persoon 1807 podocarp | |
Angiospermae | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Cupuliferoipollenites spp. Potonié | |
Caryapollenites "sp. <29 micrometers", Caryapollenites spp., Pterocaryapollenites spp., Momipites spp.
Caryapollenites "sp. <29 micrometers" Potonié 1960
Caryapollenites spp. Potonié 1960
Pterocaryapollenites spp. Thiergart
Momipites spp. Wodehouse 1933 | |
Margocolporites kruschii legume | |
Bombacacidites spp. Couper 1960 | |
Triporopollenites "sp. 1" Pflug and Thomson 1953
Triporopollenites spp. Pflug and Thomson 1953 | |
Cercidiphyllites spp. Mtchedlishvili 1961 | |
Arecipites spp. Nichols et al. 1973 palm | |
Liliacidites spp. Couper 1953 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Pteridopsida | |
Leiotriletes spp. Potonie and Kremp 1954
Deltoidospora spp. Miner 1935
Osmundacidites spp. Couper 1953 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Polypodium spp. Linnaeus 1753
Laevigatosporites spp. Ibrahim 1933
Verrucatosporites spp. Pflug and Thomson 1953 | |
Gleicheniidites spp. Dettmann 1963 | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Divisisporites | |
Fusiformisporites | |
Diporisporites | |
Diporisporites spp. Elsik 1968 | |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Multicellaesporites | |
Multicellaesporites spp. Elsik | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Tricolpopollenites | |
Tricolpopollenites spp. Thomson and Pflug 1953 |