Age.
Late Blancan, just above the Gauss/Matuyama geomagnetic boundary (ca. 2.5 mya) (Morgan
and White 2005).
General Description. Sediments of the St. David formation (Morgan and White 2005).
Fauna.
Stegomastodon mirificus—Wonderful Stegomastodont (Morgan and White 2005)
S. arizonae
†Neochoerus sp.—Capybara (Lindsay 1984)
†Histiotus stocki—Stock's Snub-nosed Bat (Lindsay 1984)
Simonycteris stocki
†Equus sp.—Horses (Lindsay 1984)
†Platygonus sp.—Flat-headed Peccaries (Lindsay 1984)
Odocoileus sp.—Odocoline Deer (Lindsay 1984)
Literature. Kurtén and Anderson 1980; Lindsay 1984; Morgan and White 2005.
Last Update: 20 Jan 2013