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