33
/
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
August 1, 2025
7070533
674431
2

jan 1, 1938 - Pachycephalosaurus

Description:

Pachycephalosaurus is discovered by William Winkley on the family ranch outside of Ekalaka, Montana.

Added to timeline:

23 Jun 2022
1
0
217

Date:

jan 1, 1938
Now
~ 87 years ago