1921 



TYPE AMMONITES— III 



CCXXIII 



Fig. I 



Fig. 2 



Ammonites erugatus, (Bean MS.), Phillips, 1829, Holotype 

 Geol. Yorksh., 163, 174, 192 ; XIII, 13 ; [Robin Hood's Bay], Yorkshire 

 " Upper Lias Shale " ; Whitby Museum, No. 100 ; <f>. 42, 27, 2i - 5, 49 



PSILOCERAS. ERUGATUM, Bean-Phillips sp. 

 Hettangian, planorbis 



