1926 



TYPE AMMONITES— VI 



DXCa 



X 0-46 



Fit;, I a 



Fig- 3 



\■^^.. 2 



Ammonites rotundus 



Slab with some 30 specimens, including impressions 



Chapmans Pool, Isle of Purbeck, Dorset ; " K.C.," Nodule Bed 



S.B. Coll. 4363, purch. at Worth Matravers, Dorset 



PALLASICERAS ROTUNDUM, J. Sowerby sp 

 Paravirgatitan, lyditicus ; Topotypes. Cf. CCCLIII 



