McKay Formation
The McKay Formation is a geologic formation in Oregon. It preserves fossils dating back to the Tortonian to Zanclean stages of the Neogene period.
Fossil content
The following fossils have been reported from the formation:Mammals
;Rodents- Cricetidae
- * Antecalomys cf. valensis
- * Basirepomys pliocenicus
- * Copemys esmeraldensis
- * Peromyscus antiquus
- * Prosomys mimus
- Aplodontidae
- * Liodontia sp.
- Sciuridae
- * Parapaenemarmota oregonensis
- * Spermophilus mckayensis
- * S. wilsoni
- * Neotamias sp.
- Eomyidae
- * Leptodontomys oregonensis
- Geomyidae
- * Parapliosaccomys oregonensis
- Perognathinae indet.
- Dipodomyinae indet.
- Heteromyidae
- * Oregonomys sargenti
- Castoridae
- * Castor sp.
- * Dipoides smithi
- Mylagaulidae
- * Hesperogaulus wilsoni
- Zapodidae
- * Pliozapus solus
- Leporidae
- * Hypolagus oregonensis
- Ochotonidae
- * Ochotona spanglei
- Talpidae
- * Gaillardia thomsoni
- * ?Neurotrichus columbianus
- * Scapanus cf. proceridens
- * Scapanus sp.
- * ?Scalopoides sp.
;Carnivora
- Mustelidae
- * Plesiogulo marshalli
- * Pliotaxidea nevadensis
- * Mustela sp.
- Canidae
- * Epicyon saevus
- * Eucyon davisi
- Felidae
- * Lynx longignathus
- * Nimravides catocopis
;Artiodactyls