The Mission Argillite is a geologic formation in Washington (state). It preserves fossils dating back to the Permian period.

Mission Argillite
Stratigraphic range: Permian
TypeFormation
Location
RegionWashington (state)
CountryUnited States

See also edit

References edit

  • Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Retrieved December 17, 2021.