FRANCE: Eocene, Lutetian, Screen 132, Gastropoda
Sassia colubrina Sassia formosa
Sassia colubrina (18 mm) Sassia formosa (24 mm)
Sassia inornata Sassia multigranifera
Sassia inornata (13 mm) Sassia multigranifera (21 mm)
Sepioidea Dentaliida Gadilimorha Patelloidea Fissurelloidea Trochoidea Cirroidea Neritoidea Stromboidea Rissooidea
Cerithioidea Vermetoidea Littorinoidea Vanikoroidea Xenophoroidea Ptenoglossa Janthinoidea Eulimoidea Buccinoidea Columbelloidea
Conoidea Mitroidea Volutoidea Muricoidea Naticoidea Cypraeoidea Calyptraeoidea Tonnoidea Ficoidea Rissoelloidea
Architectonicoidea Pyramidelloidea Acteonoidea Bulloidea Aplysioidea Spiratelloidea Elloboidea Lymnaeoidea Planorbioidea
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