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AZ: Cochise Co.


Cal Tech siteAge. May be considered Irvingtonian or very late Blancan. Morgan and White (2005) note the absence of Mammuthus, often correlated with the start of the Irvingtonian, as suggestive of a late Blancan age. For the purposes here, the site will be considered late Blancan.

General Description. Sediments of the St. David formation (Johnson et al. 1975).


Spermophilus cochisei—Cochise Ground Squirrel (Johnson et al. 1975)
Equus sp.—Horses (Johnson et al. 1975)

Literature. Johnson et al. 1975.


Last Update: 9 Jan 2013