1927 



TYPE AMMONITES— VII 



DVIb 



Fig. 



Fig. 2 



" Clydoniceras sp." 

 Cards Farm, i m. S. of South Brewham, Som. ; Cornbr., Closeworthian 

 Top of obovata — Trig. & Astarte hor. (J.W.D.) ; Douglas & Arkell Coll." 

 S- 3^5, 59, 27, o ; 60, 60, 25, o ; has columella 

 Figd. for the precision of horizon given by its collectors 



CLYDONICERAS DISCUS, J. Sowerby sp. 

 Clydoniceratan, discus. Cf. D 



