igii AMMONITES VORTEX 29c 



Comparable Species 



Am. siibarmatus \ J. de C. Sowerby, X823, ccccvii, i. 

 Am. desplacei, d'Oibigny, 1845, cvii. 

 Stephanoceras stibarmalum : Wright, 1884, lxxxv, i — -j 

 S. crassitm : Wright, 1884. l.xxxvi, i, 2, 8 — 10. 

 Cidoceras (Peronoceras) desplacei ; Joly, 1905, 11. 



