The DeBeque Formation is a
geologic formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...
in
Colorado
Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
's
Piceance Basin
The Piceance Basin is a geologic structural basin in northwestern Colorado, in the United States. It includes geologic formations from Cambrian to Holocene in age, but the thickest section is made up of rocks from the Cretaceous Period. The basi ...
,
[Bown & Kihm, 1981] preserving fossils which date back to the
Late Paleocene
The Thanetian is, in the ICS Geologic timescale, the latest age or uppermost stratigraphic stage of the Paleocene Epoch or Series. It spans the time between . The Thanetian is preceded by the Selandian Age and followed by the Ypresian Age (p ...
to
Early Eocene period
Period may refer to:
Common uses
* Era, a length or span of time
* Full stop (or period), a punctuation mark
Arts, entertainment, and media
* Period (music), a concept in musical composition
* Periodic sentence (or rhetorical period), a concept ...
(
Clarkforkian
The Clarkforkian North American Stage, on the geologic timescale, is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 56,800,000 to 55,400,000 years BP lasting .
Considered t ...
to
Wasatchian
The Wasatchian North American Stage on the geologic timescale is the North American faunal stage according to the North American Land Mammal Ages chronology (NALMA), typically set from 55,400,000 to 50,300,000 years BP lasting .
It is usually c ...
in the
NALMA classification.
[DeBeque Formation]
at Fossilworks.org[Hirsch et al., 1997] Examples of these fossils are held in the
University of Colorado Museum of Natural History.
Wasatchian correlations
See also
*
List of fossiliferous stratigraphic units in Colorado
*
Paleontology in Colorado
The location of the state of Colorado
Paleontology in Colorado refers to paleontological research occurring within or conducted by people from the U.S. state of Colorado.
The geologic column of Colorado spans about one third of Earth's history ...
References
Bibliography
*
*
Further reading
* 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
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
{{Paleogene-stub