PLATE cm. 



I'agc. 



Fig. 1. PiiYi.LiTES cK.\ssiKOUA 11. sp. Specimeu Ridge Forest 753 



'2. PiiYLLiTES sj). Yellowstoue River below Klk Creek 753 



3. CaI'.pites PEDUXCI'LATUS 11. sp. Yello^Ystolle River lielow Ell; Creek 75.5 



4, 5,. CORXU.S WRiGHTii 11. sp. Fo.ssil Forest 74;i 



6. Couxis NEWBEKKYi HoUick. Yellowstone River lielow Elk Creek 749 



846 



