1. Short title

This Act may be cited as the "National Fossil Act".

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.