1921 



TYPE AMMONITES— III 



CCXXXIVb 



Ammonites obliquatus, Young & Bird, 1828, Holotype 



Geol. Yorkshire, p. 265, Whitby Museum, No. 222 



Septicarina 4 mm. high beginning of last whorl ; reduced to a mere ridge 



at end of it, nearly end of body-chamber 



PELFXOCERAS OBLIOUATUM, Young ik Bird' sp. 

 Whitbian, variabilis. Cf. No. 14 



