FIELD CoLUMBIAN MusrumM 
PUBLICATION 60, 
GEOLOGICAL SERIES. VOL eNO, 
THE DINOSAUR BEDS 
OF THE GRAND RIVER VALLEY 
| OF COLORADO. 

BY 
Eimer S. Riccs, 
Assistant Curator, Department of Geology. 

- OLIVER CUMMINGS FARRINGTON, PH.D., 
Curator, Department of Geology. 


GHicaco ee SeA: 
September, 1go1, 
