DeBeque Formation
Appearance
DeBeque Formation | |
---|---|
Stratigraphic range: Late Paleocene-Early Eocene (Clarkforkian-Wasatchian) ~ | |
Type | Formation |
Sub-units | Atwell Gulch Member |
Lithology | |
Primary | Claystone |
Location | |
Coordinates | 40°00′N 107°54′W / 40.0°N 107.9°W |
Approximate paleocoordinates | 44°48′N 91°48′W / 44.8°N 91.8°W |
Region | Colorado |
Country | United States |
The DeBeque Formation is a geologic formation in Colorado's Piceance Basin,[1] preserving fossils which date back to the Late Paleocene to Early Eocene period (Clarkforkian to Wasatchian in the NALMA classification.[2][3] Examples of these fossils are held in the University of Colorado Museum of Natural History.[4]
Wasatchian correlations
[edit]Formation | Wasatch | DeBeque | Claron | Indian Meadows | Pass Peak | Tatman | Willwood | Golden Valley | Coldwater | Allenby | Kamloops | Ootsa Lake | Margaret | Nanjemoy | Hatchetigbee | Tetas de Cabra | Hannold Hill | Coalmont | Cuchara | Galisteo | San Jose | Ypresian (IUCS) • Itaboraian (SALMA) Bumbanian (ALMA) • Mangaorapan (NZ) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basin | Powder River Uinta Piceance Colorado Plateau Wind River Green River Bighorn |
Piceance |
Colorado Plateau |
Wind River |
Green River |
Bighorn |
Williston | Okanagan | Princeton | Buck Creek | Nechako | Sverdrup | Potomac | GoM | Laguna Salada | Rio Grande | North Park | Raton | Galisteo | San Juan | ||
Country | United States | Canada | United States | Mexico | United States | |||||||||||||||||
Copelemur | ||||||||||||||||||||||
Coryphodon | ||||||||||||||||||||||
Diacodexis | ||||||||||||||||||||||
Homogalax | ||||||||||||||||||||||
Oxyaena | ||||||||||||||||||||||
Paramys | ||||||||||||||||||||||
Primates | ||||||||||||||||||||||
Birds | ||||||||||||||||||||||
Reptiles | ||||||||||||||||||||||
Fish | ||||||||||||||||||||||
Insects | ||||||||||||||||||||||
Flora | ||||||||||||||||||||||
Environments | Alluvial-fluvio-lacustrine | Fluvial | Fluvial | Fluvio-lacustrine | Fluvial | Lacustrine | Fluvio-lacustrine | Deltaic-paludal | Shallow marine | Fluvial | Shallow marine | Fluvial | Fluvial | |||||||||
Volcanic | Yes | No | Yes | No | Yes | No | Yes | No | Yes | No |
See also
[edit]References
[edit]- ^ Bown & Kihm, 1981
- ^ DeBeque Formation at Fossilworks.org
- ^ Hirsch et al., 1997
- ^ "Collections". Museum of Natural History. 24 May 2016. Retrieved 10 November 2019.
Bibliography
[edit]- Hirsch, Karl F.; Kihm, Allen J.; Zelenitsky, Darla K. (1997), "New Eggshell of Ratite Morphotype with Predation Marks from the Eocene of Colorado", Journal of Vertebrate Paleontology, 17 (2): 360, Bibcode:1997JVPal..17..360H, doi:10.1080/02724634.1997.10010980, ISSN 0272-4634 JSTOR 4523812
- Bown, Thomas M.; Kihm, Allen J. (1981), "Xenicohippus, an Unusual New Hyracotheriine (Mammalia, Perissodactyla) from Lower Eocene Rocks of Wyoming, Colorado and New Mexico", Journal of Paleontology, 55 (1): 257, ISSN 0022-3360 JSTOR 1304347
Further reading
[edit]- A. J. Lichtig and S. G. Lucas. 2015. Paleocene-Eocene turtles of the Piceance Creek Basin, Colorado. New Mexico Museum of Natural History and Science Bulletin 67:145-152
- A. J. Kihm. 1984. Early Eocene Mammalian Fauna of the Piceance Creek Basin. Northwestern Colorado
- K. P. Schmidt. 1938. New crocodilians from the upper Paleocene of western Colorado. Geological Series of Field Museum of Natural History 6(21):315-321
Categories:
- Geologic formations of Colorado
- Eocene Series of North America
- Paleocene Series of North America
- Paleogene Colorado
- Thanetian Stage
- Ypresian Stage
- Clarkforkian
- Wasatchian
- Sandstone formations
- Fluvial deposits
- Ooliferous formations
- Fossiliferous stratigraphic units of North America
- Paleontology in Colorado
- Western United States geologic formation stubs
- Colorado geography stubs
- Paleogene stubs