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 33806: 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 | |
Microreticulatisporites | |
Microreticulatisporites spp. Potonié and Kremp 1954 | |
Pteridopsida | |
Deltoidospora spp. Miner 1935
Leiotriletes spp. Potonie and Kremp 1954 | |
Polypodiopsida | |
Undulatisporites spp. Pflug 1953
Cicatricosisporites dorogensis Potonie and Gelletich 1933 | |
Verrucatosporites spp. Pflug and Thomson 1953
Polypodium spp. Linnaeus 1753
Laevigatosporites spp. Ibrahim 1933 | |
Gleicheniidites spp. Dettmann 1963 | |
Converrucosisporites | |
Converrucosisporites spp. Potonié and Kremp 1954 | |
unclassified | |
Equisetopsida | |
Inaperturopollenites spp. Potonié 1966 | |
Lycopodiopsida | |
Lycopodiumsporites spp. Delcourt and Sprumont 1955 clubmoss | |
Algae | |
Ovoidites spp. Krutzsch 1959 | |
Divisisporites | |
Divisisporites spp. Thomson 1952 | |
unclassified | |
Angiospermae | |
Proteacidites spp. Cookson and Couper 1953
Triporopollenites "sp. 1" Pflug and Thomson 1953
Triporopollenites spp. Pflug and Thomson 1953 | |
Cercidiphyllites spp. Mtchedlishvili 1961 | |
Liliacidites spp. Couper 1953 | |
Arecipites spp. Nichols et al. 1973 palm | |
Bombacacidites spp. Couper 1960 | |
Margocolporites kruschii legume | |
Alnipollenites verus Potonie 1931 birch | |
Pterocaryapollenites spp., Caryapollenites "prodromus-imparalis type", Caryapollenites "sp. <29 micrometers", Platycaryapollenites platycaryoides
Pterocaryapollenites spp. Thiergart
Caryapollenites "sp. <29 micrometers" Potonié 1960 | |
Magnoliopsida | |
Taxodium spp. Richard 1810 cypress | |
Pinopsida | |
Piceapollenites spp. Potonié
Pinuspollenites spp. Raatz 1938 | |
Chlorophyceae | |
Pediastrum spp. Meyen 1829 | |
Schizosporis | |
Schizosporis spp. Cookson and Dettmann 1959 | |
Dicellaesporites | |
Dicellaesporites popovii Elsik 1968 | |
Diporisporites | |
| |
Diporicellaesporites | |
Diporicellaesporites spp. Elsik 1968 | |
Multicellaesporites | |
Multicellaesporites spp. Elsik | |
Lacrimasporonites | |
Fusiformisporites | |
Dyadosporonites | |
Dyadosporonites spp. Hammen | |
Inapertisporites | |
Inapertisporites spp. Hammen | |
Perotriletes | |
Perotriletes spp. Reyre 1966 | |
Tricolpopollenites | |
Tricolpopollenites "sp. <20 micrometers" Thomson and Pflug 1953
Tricolpopollenites spp. Thomson and Pflug 1953 |