UNIV. GEOL. SURV. OF KANS. 



Vol. IV. Pl. XXVII. 



PLATECARPUS CORYPH.EUS, X one half. 



WESTII — 1, la, \ 



ES-j TORTOR — 2, 2a, ( X one-half. 



VELOX — 3, 4,3a, 4a, ) 



