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A Middle Miocene age for the Rosarito Beach Formation in northwestern Baja California, Mexico.
Geol. Soc. Amer. Bull. 81(10): 3149-3154. 2 figs. Oct. 1970.
–Reports "Desmostylus sp." associated with a ?Hemingfordian camelid and a diverse warm marine fauna of Middle Miocene vertebrates and invertebrates. The age of the fauna is now considered to be Barstovian.
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