Volume 15 



Chappars, M. S. 



1936 Catalog of the type specimens of fossils 

 in the University of Cincinnati Museum. 



Clark, D. L. 



1962 Paedomorphosis, acceleration, and caono- 

 genesis in the evolution of Texas 

 Cretaceous ammonoids. 2 



Cobban, W. A* 



1951 Lover Cretaceous ammonites in Colorado, 



Wyoming, and Montana. 3 



1951 Colorado Shale of central and northwestern 



Montana and equivalent rocks of Black Hills. 4. 



1951 New species of Baculitea from the Upper 

 Cretaceous of Montana and South Dakota. 5 



1952 A new Upper Cretaceous ammonite genus 



from Wyoming and Utah. 6 



1952 Correlations of the Cretaceous formations 



of the Western Interior of the United States. 7 



1952 Frontier Formation, Wyoming and adjacent 

 areas. 8 



1953 A new species of grionocyclua from Upper 

 Cretaceous Carlile Shale. 9 



1956 Cretaceous rocks along part of southeast 



boundary of Glacier National Park, Montana. 10 



1956 Discovery of the Carlile (Turonian) ammon- 

 ite gpllflgnoniceraa woollgari in north- 

 western Montana. 11 



