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Vol. 4, 

 BUI,I,ETINS 



OF 



AMERICAN PALEONTOLOGY 



NO. 20 

 THE FAUNA AND STRATIGRAPHY OF THE JEFFER : 

 SON LIMESTONE IN THE NORTHERN ROCKY 

 MOUNTAIN REGION 



BY 



E. M. Kindle 



June 5, 1 



Cornell Univ., Ithaca, N. Y. 

 U. S. A. 

 Harris Co. 



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