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 33768: authorized by Hallie Sims, entered by Alistair McGowan on 07.08.2003
Creative Commons license: CC BY (attribution)
Taxonomic list
Pteridopsida | |
Deltoidospora spp. Miner 1935
Osmundacidites spp. Couper 1953
Leiotriletes spp. Potonie and Kremp 1954 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Polypodiopsida | |
Gleicheniidites spp. Dettmann 1963 | |
Laevigatosporites spp. Ibrahim 1933
Verrucatosporites spp. Pflug and Thomson 1953
Polypodium spp. Linnaeus 1753 | |
unclassified | |
Polypodiopsida | |
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Angiospermae | |
Triporopollenites "sp. 1" Pflug and Thomson 1953 | |
Liliacidites spp. Couper 1953 | |
Tricolporopollenites spp. Thomson and Pflug 1953 spurge | |
Margocolporites kruschii legume | |
Cupuliferoipollenites spp. Potonié | |
Alnipollenites verus Potonie 1931 birch | |
Momipites spp., Caryapollenites "prodromus-imparalis type", Caryapollenites simplex, Caryapollenites "sp. <29 micrometers", Caryapollenites spp., Platycaryapollenites platycaryoides
Momipites spp. Wodehouse 1933
Caryapollenites "sp. <29 micrometers" Potonié 1960
Caryapollenites spp. Potonié 1960 | |
Bombacacidites spp. Couper 1960 | |
Cupanieidites spp. Cookson and Pike 1954 soapberry | |
Pinopsida | |
Pinuspollenites spp. Raatz 1938 | |
Taxodium spp. Richard 1810 cypress | |
Magnoliopsida | |
Ginkgoopsida | |
Divisisporites | |
Divisisporites spp. Thomson 1952 | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Dicellaesporites | |
Dicellaesporites spp. Elsik
Dicellaesporites popovii Elsik 1968 | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Monoporisporites | |
Monoporisporites spp. Hammen | |
Diporisporites | |
Diporisporites spp. Elsik 1968 | |
Fusiformisporites | |
Quercoidites | |
Quercoidites spp. Potonié 1960 | |
Tricolpopollenites | |
Tricolpopollenites spp. Thomson and Pflug 1953 |