Overview
Approximately 50 million years ago, at the beginning of the Eocene Epoch, frigatebirds swooped above the waves of Fossil Lake, a vast, expansive lake that once occupied today's semi-arid, sagebrush and greasewood region of Wyoming's Fossil Basin. At least 15 genera of fish swam in the lake, including paddlefish, stingrays, gar, pike, trout-perch and the abundant herring Knightia, Wyoming's state fossil.
- | Author: National Park Service
- | Publisher: Createspace Independent Publishing Platform
- | Publication Date: Aug 03, 2013
- | Number of Pages: 72 pages
- | Binding: Paperback or Softback
- | ISBN-10: 1491253401
- | ISBN-13: 9781491253403
