7926 



TYPE AMMONITES— VI 



DCXXV 



Fig. I 



Fig. 2 





F'g- 3 



COSMOCERAS DUNCANI 



" Wolvercote Brickyard, Upper Wolvercote, Oxford ; Oxford Clay " 

 [" Above athleta, possibly one or two feet "—J. P.] ; "M.P.G. Coll. 37480" 



s. 37. 40, 35. 21-5 ; 56, 46-5. 34. 23 ; SI. 20-5, 44, 59, 24 



BIKOSMOKERAS GEMINATUM, NOV. 

 Kosmoceratan, subtense ; Genotype, Holotype. Cf. DIV 



