Pysht Formation
Stratigraphic range: Paleogene
Fossil from the Pysht Formation
TypeGeological formation
Location
Region Washington (state)
Country United States

The Pysht Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Paleogene period.

Fossil content

Mammals

Mammals
GenusSpeciesPresence MaterialNotesImages
Pinnarctidion P. iverseni A nearly complete skull and limited postcrania (SDSNH 146624).[1] A pan-pinniped.

Crustaceans

Crustaceans
GenusSpeciesPresence MaterialNotesImages
Upogebia U. barti Locality RB 18.[2] Multiple specimens.[2] An upogebiid mud shrimp.

See also

References

  1. Everett, Christopher J.; Deméré, Thomas A.; Wyss, André R. (2023-03-23). "A new species of Pinnarctidion from the Pysht Formation of Washington State (U.S.A.) and a phylogenetic analysis of basal pan-pinnipeds (Eutheria, Carnivora)". Journal of Vertebrate Paleontology. 42 (3): e2178930. doi:10.1080/02724634.2023.2178930. ISSN 0272-4634. S2CID 257731013.
  2. 1 2 Fraaije, R. (January 2006). "Two new Paleogene species of mud shrimp (Crustacea, Decapoda, Upogebiidae) from Europe and North America". Bulletin of the Mizunami Fossil Museum (33): 81–89.


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