The Cambrian in Arkansas, US

Cambrian in Arkansas map

undifferentiated rock units help

Choose a time period:

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

Cambrian Fossils

No slide show is available for the Cambrian in Arkansas.

Search the fossil gallery

Paleontology and geology

There was no tectonic activity in Arkansas during the Cambrian, and a sea covered the entire state. Cambrian-age rocks consist of black shales interbedded with limestones. The sediments that formed these rocks were deposited in a relatively deep marine setting and contain numerous trilobite fossils. Most Cambrian rocks in the state are below the surface; however, there are small exposures of Cambrian rocks in the Ouachita Mountains in the west central part of the state. The small extent of these exposures prohibits them from being displayed on this map.


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

site tour | about the site | site map | site credits | page credits | help | FAQs | contact
© | editorial policy | awards | teachers' guide | site generator | About RSS

paleontology news:   recent site additions: