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McKay Formation

Coordinates: 45°30′N 118°48′W / 45.5°N 118.8°W / 45.5; -118.8
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McKay Formation
Stratigraphic range: Tortonian-Zanclean (Hemphillian)
~10.3–4.9 Ma
TypeFormation
Lithology
PrimaryTuffaceous sandstone
Location
Coordinates45°30′N 118°48′W / 45.5°N 118.8°W / 45.5; -118.8
Approximate paleocoordinates45°24′N 116°06′W / 45.4°N 116.1°W / 45.4; -116.1
RegionUmatilla County, Oregon
Country United States
Type section
Named forMcKay Reservoir
McKay Formation is located in the United States
McKay Formation
McKay Formation (the United States)
McKay Formation is located in Oregon
McKay Formation
McKay Formation (Oregon)

The McKay Formation is a geologic formation in Oregon. It preserves fossils dating back to the Tortonian to Zanclean stages (Hemphillian) of the Neogene period.[1][2][3]

Fossil content

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Epicyon
Eucyon davisi
Platygonus
Machairodus
Restoration of Teleoceras

The following fossils have been reported from the formation:[1][4]

Mammals

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Rodents
Lipotyphla
Perissodactyla
Carnivora
Proboscidea
Artiodactyls

Birds

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See also

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References

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Bibliography

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  • Shotwell, J. A (1956). "Hemphillian mammalian assemblage from northeastern Oregon". Geological Society of America Bulletin. 67 (6): 717. Bibcode:1956GSAB...67..717S. doi:10.1130/0016-7606(1956)67[717:HMAFNO]2.0.CO;2.