126 



Range. Beds 467-70, Simpsoni Subzone; 77 specimens; the 

 holotype came from bed 468 or 470; has medium to coarse ribbing. 



Gagaticeras finitimum (Blake, 1876) 



1876 Aegoceras (?) finitimum Blake: 273, pi. 6, fig. 9. 

 1914 Parechioceras finitimum (Blake); Buckman: pi. 100A 

 (holotype, SM J3280, possibly from bed 468). 



Range. Beds 467 and 468, Simpsoni Subzone; 11 specimens; 

 finely ribbed. 



M.K. HOWARTH 

 Genus ECHIOCERAS Bayle, 1878 



Echioceras raricostatum (Zieten, 1831) 



1831 Ammonites raricostatus Zieten: 18, pi. 13, fig. 4. 



1855 Ammonites cereus Simpson, 1855:47. 



1912 Echioceras cereum (Simpson); Buckman: pi. 49 (holotype, 



WM461). 

 1973 Echioceras raricostatum (Zieten); Getty: 13, pi. 1, fig. 7 



(neotype, designated Getty, from Wurttemberg, Germany). 



!* 



• . 



- 

 - 



& 



!£^- 





m^ri 



ijr 





88 s m ' P - 



PLATE 3 



Eparietites bairstowi sp. nov. Holotype, bed 455.2. CA 3217, x 0.48. 



