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 siltstone
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 33793: 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 | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Divisisporites | |
Divisisporites spp. Thomson 1952 | |
Pinopsida | |
Piceapollenites spp. Potonié
Pinuspollenites spp. Raatz 1938 | |
Taxodium spp. Richard 1810 cypress | |
Podocarpus spp. L'Heritier and Persoon 1807 podocarp | |
Angiospermae | |
Liliacidites spp. Couper 1953 | |
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Cupuliferoipollenites spp. Potonié | |
Caryapollenites "prodromus-imparalis type", Caryapollenites "sp. <29 micrometers", Platycaryapollenites platycaryoides, Momipites spp.
Caryapollenites "sp. <29 micrometers" Potonié 1960
Momipites spp. Wodehouse 1933 | |
Margocolporites kruschii legume | |
unclassified | |
Pteridopsida | |
Leiotriletes spp. Potonie and Kremp 1954
Osmundacidites spp. Couper 1953
Deltoidospora spp. Miner 1935 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Verrucatosporites spp. Pflug and Thomson 1953
Laevigatosporites spp. Ibrahim 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Lycopodiopsida | |
Hamulatisporites spp. Nakoman 1966 clubmoss | |
Diporicellaesporites | |
Dicellaesporites | |
Dicellaesporites spp. Elsik | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Fusiformisporites | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953 |