1921 



TYPE AMMONITES— 111 



CCVIII 



Fig. i 



Fig. 2 



Ammonites crassulus, Simpson, 1843, Holotype 



P. 20 ; " [Whitby], Yorkshire " ; " U.L. 6," (Simpson, 1884, p. 86) 



Whitby Museum, No. 489 ; <f>. 23-5, 32, 38, 47. See PI. CLVII 



DACTYLIOCERAS CRASSULUM, Simpson sp. 

 Whitbian, jalcijerum 



