McKay Formation | |
Type: | Formation |
Age: | Tortonian-Zanclean (Hemphillian) ~ |
Period: | Messinian |
Prilithology: | Tuffaceous sandstone |
Namedfor: | McKay Reservoir |
Region: | Umatilla County, Oregon |
Coordinates: | 45.5°N -118.8°W |
Paleocoordinates: | 45.4°N -116.1°W |
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]
The following fossils have been reported from the formation:[1] [4]