1922 



TYPE AMMOMTES—IV 



CCXCV B 



Fie:. la 



Fig I 



Fig. lb 



X 034 



Nautilus chalcedonicus, Young C!c Bird, 1S2S, Holotype 



" Oolite, Thornton, Yorkshire ; Mr. \Vm. Clark [Scarborough] " 



Whitby Museum 12S0 ; S. 205, 52, 46 (17) 



S. 29S, 56, 4O, 12 ; 353, 50, 36, 18-5 



CHALCEDOXICERAS CHALCEDONICUM, Young cv Bird sp 

 Cardioceratan, Vcrtehriceras 



