1928 



TYPE AMMONITES— VII 



DCCLXXI r 



Fig. 2 



Fig. i 



X 0-9 



Ammonites ziput^ 



Lyme Regis ; S.B. Coll. 4454 ; SI. 25, 94, 100, 51 



S. 79» 3i> 30'5» 47 i J 4o» 3*. 29, 49 \ size c. 143 ; max. c.250 



Injury produces furrow disturbing spines ; other side unaffected 



XIPHEROCERAS REVERTENS, nov. 

 Asteroceratan, planicosta ; Holotype. See DCCVI 



