1925 



TYPE AMMONITES— VI 



DXCII B 



Fig. 2 X 0-35 



Fig. I N.S. 



Ammonites giganteus 



Haddenham, Bucks ; S.B. Coll. 4352 ; size 469 ; max. c. 560 



One side eroded ; thickness est. — double of half-whorls 



L2 long, c. 45 % of 94 mm. whorl-breadth 



GIGANTITES PACHYMERES, nov. 

 Gigantitan, Gigantites ; Holotype. See CCLVI 



