The Pysht Formation is a geologic formation in Washington (state). It preserves fossils dating back to the Paleogene period, which appear to have been deposited in an offshore marine environment. Outcrops are present on the northern Olympic Peninsula, in Clallam County.

Fossil content Based on the Paleobiology Database:

Cartilaginous fish Cartilaginous fish of the Pysht Formation Genus Species Presence Material Notes ImagesSomniosusS. gonzaleziA sleeper shark.

Mammals Mammals of the Pysht Formation Genus Species Presence Material Notes Imagescf. AllodesmusA. sp.A desmatophocid pinniped.BehemotopsB. proteusThe most basal known desmostylian. Type locality for genus and species.BorealodonB. oseaxA stem-baleen whale. Type locality for genus and species.FucaiaF. goedertorumAn aetiocetid baleen whale.?KronokotheriumK. sp.A desmostylian.OlympicetusO. avitusTwo partial skulls belonging to a juvenile and a neonate, including part of the dentition and a tympanic bullaA simocetid toothed whale. Type locality for genus and species.O. thalassodonPosterior part of skullPinnarctidionP. iverseniA nearly complete skull and limited postcrania (SDSNH 146624).A pan-pinniped.SitsqwaykS. cornishorumPartial skull, tympanic bullae, mandibles and postcrania.An basal baleen whale. Type locality for genus and species.

Birds Birds of the Pysht Formation Genus Species Presence Material Notes Images KlallamornisK. buchanani A plotopterid suliform. TonsalaT. hildegardaeA plotopterid suliform.

Crustaceans Crustaceans of the Pysht Formation Genus Species Presence Material Notes Images UpogebiaU. barti Locality RB 18.Multiple specimens. An upogebiid mud shrimp.

See also

List of fossiliferous stratigraphic units in Washington (state) Paleontology in Washington (state)

References