This article contains a list of fossil-bearing stratigraphic units in the state of Washington, U.S.
The Crescent Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Paleogene period.
The Lincoln Creek Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Paleogene period.
The Makah Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Paleogene period.
The Pysht Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Paleogene period.
The Puget Group is a geologic group in Washington (state). It preserves fossils dating back to the Paleogene period.
