Evanston Formation Explained

Evanston Formation
Type:	Geological formation
Age:	Late Cretaceous to Middle Paleocene Maastrichtian-Selandian ~
Region:	North America

The Evanston Formation is a geological formation in Wyoming whose strata date back to the Late Cretaceous.^[1] Dinosaur remains are among the fossils that have been recovered from the formation.^[2] The fossil formation also has the remains of prehistoric mammals from the Paleocene epoch.^[3]

Vertebrate paleofauna

• Alamosaurus sp.^{[4] [5]}
• Triceratops horridus^[6]
• Insectivora^[3]
• Multituberculata^[3]
• Primates^[3]
• Condylarthra^[3]
• Creodonta^[3]

See also

• List of dinosaur-bearing rock formations

References

41.8068°N -110.6813°W

Notes and References

1. Web site: Oriel . Simon S. . Tracey, Jr. . Joshua . 1970 . Uppermost Cretaceous and Tertiary Stratigraphy of Fossil Basin, Southwestern Wyoming . https://web.archive.org/web/20160305011233/https://pubs.usgs.gov/pp/0635/report.pdf . March 5, 2016 . February 18, 2024 . United States Geologic Survey Publication Warehouse . 5–14.
2. Web site: Weishampel . David B. . Dodson . Peter . Osmólska . Halszka . 2004 . Worldcat.org . The dinosauria . 2024-02-18 . search.worldcat.org . University of California Press . 574–588 . en . Berkeley.
3. Gazin . Lewis C. . New Occurrence of Paleocene Mammals in the Evanston Formation, Southwestern Wyoming . Smithsonian Contributions to Paleobiology . 1969 . 1–17 . 10.5479/si.00810266.2.1 . 18 November 2020.
4. Lucas . Spencer G. . Sullivan . Robert M. . The sauropod dinosaur Alamosaurus from the Upper Cretaceous of the San Juan Basin, New Mexico . New Mexico Museum of Natural History and Science Bulletin . January 2000 . 17 . 147–156 . 18 November 2020.
5. Williamson . Thomas E. . Weil . Anne . 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 . December 12, 2008 . 28 . 4 . 1218–1223 . 18 November 2020 . Taylor & Francis, Ltd.. 20491055 .
6. Web site: The Geologic History of Fossil Butte National Monument and Fossil Basin NPS Occasional Paper No. 3 . NPS.gov . National Park Service . 1 March 2005.