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Clallam Formation

From Wikipedia, the free encyclopedia
Clallam Formation
Stratigraphic range: Late Oligocene-early Miocene
TypeFormation
UnderliesQuinault Formation
OverliesPysht Formation
Lithology
PrimarySandstone, conglomerate, shale
OtherCoal
Location
RegionWashington (state)
CountryUnited States
Type section
Named forClallam County, Washington

The Clallam Formation is a geologic formation in Washington (state). It preserves marine fossils dating back to the late Oligocene and early Miocene period. It outcrops on the northern Olympic Peninsula and along parts of the Strait of Juan de Fuca.[1][2]

Vertebrate paleobiota

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Mammals

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Mammals of the Clallam Formation
Genus Species Stratigraphy Material Notes Images
Desmostylus D. hesperus Aquitanian A desmostylian.
Kolponomos K. clallamensis An amphicynodont pan-pinniped. Type locality of genus and species.
aff. Kronokotherium K. sp. A desmostylian.
Squalodelphinidae indet. A squalodelphinid toothed whale.
Squaloziphius S. emlongi A squaloziphiid toothed whale. Type locality of genus and species.

See also

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References

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


  1. ^ "Geolex — Clallam publications". ngmdb.usgs.gov. Retrieved 2024-11-21.
  2. ^ "PBDB Collection". paleobiodb.org. Retrieved 2024-11-21.