Clallam Formation

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Clallam Formation
Stratigraphic range: Late Oligocene-early Miocene
Type Formation
Underlies Quinault Formation
Overlies Pysht Formation
Lithology
Primary Sandstone, conglomerate, shale
Other Coal
Location
Region Washington (state)
Country United States
Type section
Named for Clallam 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]

Contents

Vertebrate paleobiota

Mammals

Mammals of the Clallam Formation
GenusSpeciesStratigraphyMaterialNotesImages
Desmostylus D. hesperus Aquitanian A desmostylian. Desmostylus 3 NT.jpg
Kolponomos K. clallamensisAn amphicynodont pan-pinniped. Type locality of genus and species. Kolponomos NT.jpg
aff. Kronokotherium K. sp.A desmostylian.
Squalodelphinidae indet.A squalodelphinid toothed whale.
Squaloziphius S. emlongiA squaloziphiid toothed whale. Type locality of genus and species.

See also

References

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