The Paleontology of North America

The Triassic in Oregon, US

map

undifferentiated rock units

See exposures in this state from the:
Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Precambrian

Triassic Fossils
Fossil photos from Triassic in Oregon

Paleontology and geology

Triassic rocks of central and eastern Oregon formed on oceanic volcanic islands fringed with coral reefs. The diversity of tropical molluscs and corals was high, indicating a warm tropical climate during this time interval.
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