s)L>te^^^:a.g 



UxAM^tM 



Bull. Soc. Géol. de France 



ïïg. 8_Tapipus 

 apvernensis 



Fig.2__ PalœoLapipus 

 Douvillei 



Fig.6_ Palaeotapipus 

 helveticus 



Fig.5 _ Ppotapipus 

 Douvillei 



Fig.4_Colo(ion 

 minimus 



Fig,3„Lophiodon 

 rhmocerodes 



3!° Sépie Tome XXV PI IX 



Fig.2_Lophiodon 

 isselensis 



Fig 1 -LopPiodon 

 isselensis 



Formant ad. nat. del.et lith. 



r. î- 



Imp, Ed. Brif Paris. 



