1914 YORKSHIRE TYPE AMMONITES— II XCVIIIb 



Fig. i 



Fig. 2 



Ammonites hyperbolicus, Simpson-Leckenby, 1859 



Sedgwick Museum, Cambridge (Leckenby Coll.), Holotype 



Fig. 1, Apertural view ; Fig. 2, Peripheral view ; both x 0.94 



PHLYCTICERAS HYPERBOLICUM, Simpson-Leckenby sp. 



