Where: Sheridan County, Wyoming (44.6° N, 106.2° W: paleocoordinates 47.5° N, 93.2° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Wasatch Formation, Eocene (56.0 - 33.9 Ma)
• 6 m above Felix coal (major coal bed).
Environment/lithology: marine; lithology not reported
Size class: microfossils
Preservation: original sporopollenin
Collected by USGS, Denver, Colorado
Collection methods: bulk, chemical, hydrochloric, hydroflouric
• All slides are held in the Denver laboratory of the U.S. Geological Survey.
Primary reference: D. Pocknall. 1986. Palynological data from the Fort Union and Wasatch formations, Powder River basin, Wyoming and Montana. Open-File Report more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 236615: authorized by Phillip Jardine, entered by Hannah Morck on 16.10.2024
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
Tilia tetraforaminipites linden | |
unclassified | |
Angiospermae | |
Sparganium cf. globipites bur-reed | |
unclassified | |
Angiospermae | |
unclassified | |
Angiospermae | |
Nyssa ingentipollinia tupelo | |
unclassified | |
Pteridopsida | |
Angiospermae | |
Erdtmanipollis pachysandroides boxwood | |
Ginkgoopsida | |
Ephedripites spp. Bolkhovitina and PotoniƩ 1958 | |
Pteridopsida | |
Leiotriletes spp. Potonie and Kremp 1954 | |
Polypodiopsida | |
Baculatisporites sp. Thomson and Pflug 1953 | |
Laevigatosporites spp. Ibrahim 1933 | |
Magnoliopsida | |
Malvacipollis spp., Periporopollenites sp., "Tricolpites anguloluminosus" = Albertipollenites anguloluminosus
Malvacipollis spp. Harris 1965
Periporopollenites sp. Pflug and Thomson 1953
"Tricolpites anguloluminosus" = Albertipollenites anguloluminosus Archangelsky 1973 | |
Angiospermae | |
Intratriporopollenites sp. Thomson and Pflug 1953 | |
Alnipollenites verus Potonie 1931 birch | |
Caryapollenites imparalis, Caryapollenites veripites, Caryapollenites inelegans, Momipites wyomingensis, Momipites ventifluminis, Platycarya platycaryoides
Caryapollenites imparalis Nichols and Ott 1978
Caryapollenites veripites Wilson and Webster 1946
Caryapollenites inelegans Nichols and Ott 1978
Momipites wyomingensis Nichols and Ott 1978
Momipites ventifluminis Nichols and Ott 1978
Platycarya platycaryoides Roche 1969 | |
Triporopollenites spp. Pflug and Thomson 1953 | |
Tricolpites "cf. Eucommia sp." Couper 1953 |