1909 AMMONITES RIPLEYI 2c 



Comparable Species 



Am. jamesoni, J. de C. Sowerby, 1827, dlv, 1. 

 Am. obsoleltis, Simjjson, 1843, 23. 

 Am. regnardi, d'Orbigny, 1844, Lxxii, i, 2. 

 Am. jamesoni angtistus, Quenstedt, 1849, iv, 8. 



; Oppel, 1853, II, 4, 5. 

 Am. ignolus, Simpson, 1855, 61. 

 Mgoceras jamesoni ; Wright, 1882, Li, esp. 4 — 6. 

 Dumortieria jamesoni. var. angusta ; Haug, 1887, iv, 6. 



