The Paleontology of North America

The Tertiary in Arizona, US

 map

undifferentiated rock units

See exposures in this state from the:

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

Tertiary Fossils

No slide show is available for the Tertiary in Arizona.

Paleontology and geology

During the Tertiary, extensive tectonic activity and volcanism in Arizona provided a wide range of terrestrial habitats, including grasslands, lakes, river systems, and deserts. Three-toed horses, giant tortoises, mastodons, and camels thrived in the region. Deposits of Tertiary rocks occur throughout the state.

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