47 
THE FOSSIL GENERA. 
Page. 
Ammonites 42 
Ammonoceratites 42 
Baculites , • 43 
Belemnites 39 
Birostrites 22 
Calceola 22 
Conilites 39 
Diceras 17 
Discorbites 41 
Page. 
Gyrogonites 41 
Hippurites 39 
Lenticulites 41 
Lituolites 40 
Melonites 41 
Nummulites 42 
Orbulites • • • 42 
Page. 
Plagiostoma • • 20 
Podopsis 21 
Radiolites 22 
Renulites 40 
Rotalites • • 41 
Siderolites 41 
Sphaerulites 22 
Teredina 6 
Turrilites 42 
Venericardia 14 
FINIS, 
