TE 



924 

 .065 

 1938 

 V.2 



CONTRIBUTIONS TO PALyEONTOLOGY 



UPPER CRETACEOUS FLORAS OF THE 

 ROCKY MOUNTAIN REGION 



11: FLORA OF THE LANCE FORMATION AT ITS 

 TYPE LOCALITY, NIOBRARA COUNTY. WYOMING 



By Erling Dorf 



Princeton University 



With seventeen plates and 3 text figurea 



[Preprinted from Carneqib Institution of Washington Publication No. 508, pages 79 to 159, October 2, 1942] 



