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Page:Popular Science Monthly Volume 86.djvu/251

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EXTINCT FAUNAS OF THE MOHAVE DESERT
247

Outline Map Showing Relation of the Mohave Area to Other Pacific Coast and Great Basin Regions During the Later Geological Periods. Within the Mohave region the principal faunal localities are indicated as follows: B, Barstow fauna; R, Ricardo fauna; M, Manix fauna.