ENVIRONMENT OF THE TITANOTHEEES 



75 



Figure 61. — Section of the Huerfano formation in southeastern Colorado as exposed west of 

 Gardner, Huerfano Basin 



Thickness 3,500 feet. Near the summit is a Wind River B fauna (.Lambdotherium zone), and above that a Bridger A fauna 

 (.Palaeosyops fontinalis zone). After Granger (1918). 



