Zion National Park's Fossils

How Fossils Came Upon the State of Utah

8,000 Years Ago

Native Americans began inhabiting the Zion National Park in permanent communities along with several other tribal groups.

1909 (during President William Howard Taft's reign)

In 1909, President William Howard Taft came up the original landmark's name: Mukuntuweap National Monument. This name would be short-lived for nine years until the National Park Service renamed it to the present name: Zion National Park.

Namers of the Zion National Park

List of Fossils

Where the Formations are Located

There are nine formations in the Zion National Park that represent 150 million years of mostly Mesozoic-aged sedimentation. During that timeframe, warm bodies of freshwater, including streams, seas, lakes, and ponds; covered the area. Specific fossils included in this site are pore bearers buried in lime mud about 260 million years ago. These can be found in the Upper Permian layer. There are also petrified wood, ferns, horsetails, and conifer bearers located as fossils in the Upper Triassic layer.