

1921 



TYPE AMMONITES— III 



CCLV 



Fig i 



Fig. 2 





F'g- 3 



Fig, ia 



" Ammonites calloviensis " 

 [Kellaways, Wiltshire ; Kell. Rock], impression of a Rhynchonella 

 J.W.T. Coll. ; S. 38, 46, 42, 21 ; 65, 47-5, 41-5, 17 ; max. c. 85 



SIGALOCERAS MICANS, nov. 

 Callovian, calloviense (Crassiplanulites) ; Holotype. Cf. CCLIV 



