H.R. 9191 · Passed House · Government Operations and Politics

National Fossil Act of 2026

Sponsor: Erin Houchin (R-IN)

What it does

• Designates the American Mastodon (Mammut americanum) as the national fossil mammal.
• Designates the Tyrannosaurus rex as the national fossil dinosaur.

Official summary

National Fossil Act of 2026 This bill designates the Mammut americanum (the American Mastodon) fossil as the national fossil mammal and the Tyrannosaurus rex fossil as the national fossil dinosaur.

Latest action

Sep 17, 2026: Received in the Senate and Read twice and referred to the Committee on the Judiciary.

Committee: Senate Judiciary