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The Castlegate Sandstone is a 
Description
Composed of light gray to dark gray, thin bedded to massive, platy, fine to coarse grained, quartzose sandstone. Some conglomerate beds. The sandstone beds of the Castlegate are chiefly gray, unlike the sandstone beds of the underlying Blackhawk Formation, which are commonly some shade of brown. Locally, the Castlegate Sandstone beds are white. Commonly forms cliffs or steep slopes. The sandstone was deposited by rivers during the Late Cretaceous. The Castlegate Sandstone is 130-500 feet (40-155 m) thick.
It gets its name from the gate-like passage that used to exist at the type section in Price Canyon. The western side of the gate was removed during highway improvement, which exposed most of the stratum. Fossil pollen indicate a late Campanian age.Fouch, T.D., Lawton, T.F., Nichols, D.J., Cashion, W.B., and Cobban, W.A., 1983, Patterns and timing of synorogenic sedimentation in Upper Cretaceous rocks of central and northeast Utah, IN Reynolds, M.W., and Dolly, E.D., eds., Mesozoic paleogeography of the west-central United States: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section, Rocky Mountain Paleogeography Symposium, v. 2, p. 305-336.
Mesozoic
The Mesozoic Era ( ), also called the Age of Reptiles, the Age of Conifers, and colloquially as the Age of the Dinosaurs is the second-to-last era of Earth's geological history, lasting from about , comprising the Triassic, Jurassic and Creta ...
geologic formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondary ...
in the United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
. Dinosaur
Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23 million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...
remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...
.Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
Description
Composed of light gray to dark gray, thin bedded to massive, platy, fine to coarse grained, quartzose sandstone. Some conglomerate beds. The sandstone beds of the Castlegate are chiefly gray, unlike the sandstone beds of the underlying Blackhawk Formation, which are commonly some shade of brown. Locally, the Castlegate Sandstone beds are white. Commonly forms cliffs or steep slopes. The sandstone was deposited by rivers during the Late Cretaceous. The Castlegate Sandstone is 130-500 feet (40-155 m) thick.
It gets its name from the gate-like passage that used to exist at the type section in Price Canyon. The western side of the gate was removed during highway improvement, which exposed most of the stratum. Fossil pollen indicate a late Campanian age.Fouch, T.D., Lawton, T.F., Nichols, D.J., Cashion, W.B., and Cobban, W.A., 1983, Patterns and timing of synorogenic sedimentation in Upper Cretaceous rocks of central and northeast Utah, IN Reynolds, M.W., and Dolly, E.D., eds., Mesozoic paleogeography of the west-central United States: Society of Economic Paleontologists and Mineralogists, Rocky Mountain Section, Rocky Mountain Paleogeography Symposium, v. 2, p. 305-336.
See also
*List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
Containing body fossils
* List of stratigraphic units with dinosaur body fossils
** List of stratigraphic units with f ...
** List of stratigraphic units with indeterminate dinosaur fossils
This list of stratigraphic units with indeterminate dinosaur fossils includes stratigraphic units of formation rank or higher that have produced dinosaur body fossils, although none of these remains have been referred to a specific genus in the sci ...
Footnotes
References
* Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. . Geologic formations of the United States Campanian Stage {{US-geologic-formation-stub