STATE OF OHIO 

 MICHAEL V. DI SALLE, Governor 

 DEPARTMENT OF NATURAL RESOURCES 

 HERBERT B. EAGON, Director 



DIVISION OF GEOLOGICAL SURVEY 



RALPH J. BERNHAGEN, Chief 



. 03 



L2 



BULLETIN 54 



OHIO FOSSILS 



BY 



AURELE LA ROCQUE 



AND 



MILDRED FISHER MARPLE 



COLUMBUS 

 1955 



SECOND PRINTING 1956 



THIRD PRINTING 1959 

 FOURTH PRINTING 1961 



