119th CONGRESS
2d Session
H. R. 9191


To amend chapter 3 of title 36, United States Code, to designate the American mastodon as the national fossil mammal and the Tyrannosaurus rex as the national fossil dinosaur of the United States, and for other purposes.


IN THE HOUSE OF REPRESENTATIVES

June 8, 2026

Mrs. Houchin (for herself, Mrs. Dingell, Mr. Johnson of South Dakota, Ms. Maloy, Mr. Langworthy, and Mr. Mann) introduced the following bill; which was referred to the Committee on the Judiciary


A BILL

To amend chapter 3 of title 36, United States Code, to designate the American mastodon as the national fossil mammal and the Tyrannosaurus rex as the national fossil dinosaur of the United States, and for other purposes.

Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled,

SECTION 1. Short title.

This Act may be cited as the “National Fossil Act”.

SEC. 2. National fossil mammal and dinosaur of the United States.

(a) Designation.—Chapter 3 of title 36, United States Code, is amended by adding at the end the following:

§ 307. National fossil mammal and dinosaur

“The fossil of—

“(1) the genus Mammut americanum, commonly known as the American mastodon, is the national fossil mammal; and

“(2) the Tyrannosaurus rex is the national fossil dinosaur.”.

(b) Conforming amendments.—The table of sections for chapter 3 of title 36, United States Code, is amended—

(1) in the chapter heading, by striking “and bird” and inserting “bird, and fossil”; and

(2) by adding at the end the following:


“307. National fossil mammal and dinosaur.”.