1909 



YORKSHIRE TYPE AMMONITES 



VI 



Fig. I 



Fig. 2 



Fig- 3 



Ammonites resupinatus, Simpson, 1843 



Whitby Museum, No. 96, Holotype 



Fig I, Side view; Fig. 2, Peripheral view; both nat. size 



Fig. 3, Approximate delineation of two septal margins, X 3 



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AGASSICERAS RESUPINATUM. Simpson sp. 



