Evanston Formation

{{Short description|Geological formation in Wyoming, USA}}

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| name = Evanston Formation

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| type = Geological formation

| age = Late Cretaceous to Middle Paleocene
Maastrichtian-Selandian
~{{fossil range|66|59}}

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| region = North America

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The Evanston Formation is a geological formation in Wyoming whose strata date back to the Late Cretaceous.{{Cite web |last1=Oriel |first1=Simon S. |last2=Tracey, Jr. |first2=Joshua |date=1970 |title=Uppermost Cretaceous and Tertiary Stratigraphy of Fossil Basin, Southwestern Wyoming |url=https://pubs.usgs.gov/pp/0635/report.pdf |archive-url=https://web.archive.org/web/20160305011233/https://pubs.usgs.gov/pp/0635/report.pdf |archive-date=March 5, 2016 |access-date=February 18, 2024 |website=United States Geologic Survey Publication Warehouse |pages=5–14}} Dinosaur remains are among the fossils that have been recovered from the formation.{{Cite web |last1=Weishampel |first1=David B. |last2=Dodson |first2=Peter |last3=Osmólska |first3=Halszka |date=2004 |others=Worldcat.org |title=The dinosauria |url=https://search.worldcat.org/title/801843269 |access-date=2024-02-18 |website=search.worldcat.org |publisher=University of California Press |pages=574–588 |language=en |publication-place=Berkeley}} The fossil formation also has the remains of prehistoric mammals from the Paleocene epoch.{{cite journal |last1=Gazin |first1=Lewis C. |title=New Occurrence of Paleocene Mammals in the Evanston Formation, Southwestern Wyoming |journal=Smithsonian Contributions to Paleobiology |date=1969 |pages=1–17 |doi=10.5479/si.00810266.2.1 |url=https://repository.si.edu/handle/10088/1935 |accessdate=18 November 2020}}