Evanston Formation
| Evanston Formation | |
|---|---|
| Stratigraphic range: Late Cretaceous to Middle Paleocene Maastrichtian-Selandian ~ | |
| Type | Geological formation |
| Location | |
| Region | North America |
The Evanston Formation is a geological formation in Wyoming whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1] The fossil formation also has the remains of prehistoric mammals from the Paleocene epoch.[2] Mammal fossils have been found in Paleocene rocks here too.[3]
Vertebrate paleofauna
- Alamosaurus sp.[4][5]
- Triceratops horridus[6]
- Triceratops prorsus[6][7]
- T. flabellatus (actually T. horridus)[7][8]
- Insectivora[3]
- Multituberculata[3]
- Primates[3]
- Condylarthra[3]
- Creodonta[3]
See also
References
- ^ Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 574-588. ISBN 0-520-24209-2.
- ^ Gazin, C. L. (1969). "New Occurrence of Paleocene Mammals in the Evanston Formation, Southwestern Wyoming". Smithsonian Contributions to Paleobiology: 1–17. doi:10.5479/si.00810266.2.1. Retrieved 21 October 2020.
- ^ a b c d e f Gazin, Lewis C. (1969). "New Occurrence of Paleocene Mammals in the Evanston Formation, Southwestern Wyoming". Smithsonian Contributions to Paleobiology: 1–17. doi:10.5479/si.00810266.2.1. Retrieved 18 November 2020.
- ^ Lucas, Spencer G.; Sullivan, Robert M. (January 2000). "The sauropod dinosaur Alamosaurus from the Upper Cretaceous of the San Juan Basin, New Mexico". New Mexico Museum of Natural History and Science Bulletin. 17: 147–156. Retrieved 18 November 2020.
- ^ Williamson, Thomas E.; Weil, Anne (December 12, 2008). "Stratigraphic Distribution of Sauropods in the Upper Cretaceous of the San Juan Basin, New Mexico, with Comments on North America's Cretaceous 'Sauropod Hiatus'". Journal of Vertebrate Paleontology. 28 (4). Taylor & Francis, Ltd.: 1218–1223. Retrieved 18 November 2020.
- ^ a b "The Geologic History of Fossil Butte National Monument and Fossil Basin NPS Occasional Paper No. 3". NPS.gov. National Park Service. Retrieved 1 March 2005.
- ^ a b Rubey, W. W.; Oriel, S. S.; Tracey Jr., J. I. (1961). "Age of the Evanston Formation, Western Wyoming". Symposium on Late Cretaceous Rocks, Wyoming and Adjacent Areas; 16th Annual Field Conference Guidebook: 68–69. Retrieved 18 November 2020.
- ^ Weishampel, David B.; Osmólska, Halszka; Dobson, Peter (1990). The Dinosauria. University of California Press. p. 118. ISBN 9780520067264. Retrieved 18 November 2020.
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