Clallam Formation | |
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Stratigraphic range: | |
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]
Mammals of the Clallam Formation | |||||
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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. |