7.92/ 



TYPE AMMONITES— III 



CCLVII a 



X o-ig 



" Ammonites giganteus " 



Scotsgrove, Haddenham, Bucks ; Portland Stone 



Building Stone ; S.B. Coll. 3485, pres. Capt. Ashton 



Body-chamber with signs of month ; S. 644, 29, 23-5, 46 



BRIAREITES POLYMELES, Nov. 

 Portlandian, Titanites ; Genotype, Holotype. Cf. CCLVI 



