Page:A History of Land Mammals in the Western Hemisphere.djvu/138

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
114
LAND MAMMALS IN THE WESTERN HEMISPHERE

Fig. 50.—Map of North America in the upper Oligocene. Explanation as in Fig. 48.
(After Schuchert.)

Retrieved from "https://en.wikisource.org/w/index.php?title=Page:A_History_of_Land_Mammals_in_the_Western_Hemisphere.djvu/138&oldid=14154668"