1926 



TYPE AMMONITES— VJ 



DCLXXIV A 



Fie.' I 



Ammonites rotundus 

 Chapmans Pool, Isle of Purbeck, Dorset ; " Kimm. Clay " 

 Nodule Bed, south of stream, about lo' up 

 S.B. Coll. 4374; SI. 49, 49, 47, 29; Max. c. 290 



LYDISTRATITES TRIGONALIS, nov. 

 Paravirgatitan, lyditicus ; Holotype. See DCXXXIX 



