DISTRIBUTION OF THE UPPER LIAS AMMONITES. 



163 



A Table shoioing the Stratigraphical Distribution of the Ammonoida in the Upper Lias 



of the British Islands. 



Families, Genera, and Species. 



Serpentinum. 







a 



a 

 J 



Family — LttocrratiUjE. 

 Genus — Lytoceras. 



* 



* 

 # 

 # 





* 

 # 

 » 



« 

 » 



# 



# 



* 



* 



* 



* 



* 



* 

 * 

 # 

 * 



* 

 » 

 * 

 * 

 * 



* 

 * 

 # 



* 

 * 



* 









Ge/(««-^PHYLLOCEBAS. 





Family — AEGOCEBATiDiE. 

 Genus — Harpoceras. 



















subplanatum, Oppel 





bifrons, Bru(juiere=^'^&\coi\.\, Sow... 

 Levisoni, Simpson 



mi\gne, Schilbler 



Comense, Von Buch 



AxicoiAes, Zieten 



Thouarsense, t?' Or6i^ 



striatulum, Sow 





Raquiiiianuni, d'Orbig 



undulatum, Stahl 



variabile, d'Orbiff.=viir. Beanii 



Aalense, Zieten 



opalinum, Reinecke 



Moorei, Lycelt 



subinsigne, Oppel 



Genus — Stephaxoceras. 

 Stephanoceras annulatum, Sow 



* 

 # 

 # 



crassum, Young Sf Bird 



HolsLndrei, d'Orbiff 



commune, Sow 



fibulatum, Sow 



subarmatum, Young Sf Bird 







