TURTLES OF JUDITH RIVER FORMATION 65 



6. It is plain, then, that the comparisons that have been made 

 between "Judith River" turtles and those of higher horizons (Lance 

 formation, "Laramie," "Ceratops beds," "Hell Creek beds," 

 "somber beds," etc.), have not been made with species that really 

 belong to the Judith River fauna, but with forms that actually 

 belong to these higher beds. It is not to be wondered at that such 

 a comparison has resulted in showing "identity" and "striking 

 similarity," since it is in accord with the ancient axiom, that " Things 

 equal to the same thing are equal to each other." 



