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H.R. 9191

BillFederalHouseIn Committee
National Fossil Act
About This Bill
Committee
Latest Action · June 8, 2026
Referred to the House Committee on the Judiciary.
Congress
119th (2025–2027)
Introduced
June 8, 2026
Cosponsors (9)
2D 7R
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Summary

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This bill designates the American mastodon as the national fossil mammal of the United States and the Tyrannosaurus rex as the national fossil dinosaur. The legislation amends federal law to add these two official symbols to the existing chapter of United States Code that covers national emblems. The bill does not authorize any funding or establish a timeline for implementation, as it simply establishes symbolic designations similar to the existing national bird, flower, and other official symbols. The changes would apply nationwide and affect how these extinct species are formally recognized in U.S. law.

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