r 
Mém. Soc.Géol de France. 
PALÉONTOLOGIE 
fP[LcmoVLC' . (fi> 1 1 CtXLl 
Mém.N” 13, PI lY 
TV PI. VI 
Gauthier ad natdel ethth. 
lmp Edouard Bry, Paiis 
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