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Fossil Butte National Monument
Reptiles
Short-horned lizards are well camouflaged.

NPS photo

Mountain short-horned lizard

The wandering garter snake (Thamnophis elegans vagrans) and short-horned lizard (Phrynosoma douglassi brevirostre)are the only reptiles documented.

The monument's sagebrush steppe landscape appears ideal habitat for rattlesnakes, but they are not found here.  Why?  We don't know. Prairie rattlesnakes inhabit other parts of Wyoming at elevations over 8500 feet, but usually are restricted to elevations less than 7,000 feet. 

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Did You Know?
Plant fossils, like palm fronds, tell us that 50 million years ago, southwest Wyoming's climate was much like Florida's is today.
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Last Updated: September 14, 2006 at 11:46 MST