1911 AMMONITES TURRICULATUS 30c 



Comparable Species 



Am. attenuattis. Simpson, 1855, p. 54. 



Am. des placet ; numortier, 1874, (iv) xxvii, 4. 



Stephanoceras fibulatiim ; Wright, 1884, Lxxxv, 5, 6, 8. 



For species comparable with prefibulate stage, see No. 31c. 



