McKay Formation
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McKay Formation | |
---|---|
Stratigraphic range: Tortonian-Zanclean (Hemphillian) ~ | |
Type | Formation |
Lithology | |
Primary | Tuffaceous sandstone |
Location | |
Coordinates | 45°30′N 118°48′W / 45.5°N 118.8°W |
Approximate paleocoordinates | 45°24′N 116°06′W / 45.4°N 116.1°W |
Region | Umatilla County, Oregon |
Country | ![]() |
Type section | |
Named for | McKay Reservoir |
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
![](http://upload.wikimedia.org/wikipedia/commons/thumb/1/19/Epicyon.jpg/250px-Epicyon.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/9/9e/Platygonus_leptorhinus.jpg/250px-Platygonus_leptorhinus.jpg)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/0/0c/Machairodus_from_Cerro_de_Batallones.png/250px-Machairodus_from_Cerro_de_Batallones.png)
![](http://upload.wikimedia.org/wikipedia/commons/thumb/6/68/Teleoceras_Horsfall.jpg/250px-Teleoceras_Horsfall.jpg)
The following fossils have been reported from the formation:[1][4]
Mammals
- Rodents
- Cricetidae
- Aplodontidae
- Sciuridae
- Eomyidae
- Geomyidae
- Perognathinae indet.
- Dipodomyinae indet.
- Heteromyidae
- Castoridae
- Mylagaulidae
- Zapodidae
- Leporidae
- Ochotonidae
- Lipotyphla
- Perissodactyla
- Carnivora
- Proboscidea
- Artiodactyls
Birds
See also
References
- ^ a b McKay Formation at Fossilworks.org
- ^ McKay Formation at USGS
- ^ McKay Formation publications at USGS
- ^ Shotwell, 1956
Bibliography
- 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.
Categories:
- Pages using gadget WikiMiniAtlas
- Articles with short description
- Short description matches Wikidata
- Coordinates on Wikidata
- Neogene geology of Oregon
- Miocene Series of North America
- Messinian
- Tortonian
- Pliocene Series of North America
- Hemphillian
- Zanclean
- Sandstone formations of the United States
- Tuff formations
- Lacustrine deposits
- Paleontology in Oregon
- Umatilla County, Oregon