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List of the prehistoric life of Washington
The Paleobiology Database records no known occurrences of Precambrian fossils in Washington.
Illustration of a fossilized shell of the brachiopod
Kutorgina
Fossil of the Cambrian trilobite
Nevadia
Fossilized shell of the Early Jurassic-Late Cretaceous marine bivalve
Inoceramus
with a human indicating its size
Fossilized shell of the Late Cretaceous ammonoid cephalopod
Pachydiscus
