TJ. S. GEOLOGICAL SURVEY 



MONOGRAPH 55 PLATE VI 



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A. A T^'I'ICAI. HL'ERFANO LOCALITY, 2 MILES WEST OF GARDNER, HUERFANO BASIN, COLO. 



Palaeosyops fontinalis zone (level Huerfano B). A cedar-covered ridge in midale diftance, and eruptive peaks in the background. The 

 type of Eometarhinus and referred specimens of Palaeosyops fontinalis were found at this site. Am. Mus. negative 104715 



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B. A TYPICAI- "LOST CABIN" LOCALITY, ON ALKALI CREEK, EAST OF LOST CABIN, WIND RIVER BASIN, WYO. 



Lamhdotheriunt sone (level Wind River B). The types of Lambdotherium po^oagicum, Eotitanops horealis, and E. gregoryi -were 



found at this site. Am. Mus. negative 18392 



TYPICAL HUERFANO FORMATION OF COLORADO AND WIND RIVER FORMATION OF 



WYOMING 



