home   Printer friendly version Add to site
Advanced search
Time & Space Fossil Gallery Famous Flora & Fauna
Careers Resources K-12 Collections PaleoPeople

The Silurian in Arkansas, US

Silurian in Arkansas map

undifferentiated rock units help

Choose a time period:

Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian

Silurian Fossils

No slide show is available for the Silurian in Arkansas.

Search the fossil gallery

Paleontology and geology

There was no tectonic activity in Arkansas during the Silurian. Most Silurian-age rocks in the state are either deeply buried or were removed by erosion. The few rocks that remain indicate that a sea covered the state during this time interval. Although not visible on this map, there are small exposures of fossil-poor Silurian shale and sandstone in the Ouachita Mountains of central Arkansas that are indicative of deep ocean waters. Additionally, a few patches of Silurian limestone are exposed in the Ozarks in northern Arkansas. These rocks contain trilobite, crinoid, and brachiopod fossils, indicating that the Silurian sea covering that part of the state was shallow and warm.


Missouri State Map
Tennessee  State Map
Mississippi State Map
Texas State Map
Oklahoma State Map
Louisiana State Map