FRANCE: Basin de Paris, Eocene 121
Cerithioidea

Bittium parcecostatum Bittium parcecostatum
Bittium parcecostatum (11 mm), colno 25808
Cuisian
Bittium parcecostatum (7 mm), colno 26014
Cuisian
Bittium philippardi Bittium semigranosum
Bittium philippardi (7 mm), colno 54165
Cuisian
Bittium semigranosum (20 mm), colno 7711
Bartonian
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Lepidopleurina Ischnochitonina Chitonina Nautiloidea Coleoidea Dentaliida Gadilimorpha Patelloidea Fissurelloidea Pleurotomarioidea
Trochoidea Cirroidea Neritoidea Stromboidea Rissooidea Tornoidea Ampullarioidea Cyclophoroidea Cerithioidea Vermetoidea
Littorinoidea Vanikoroidea Xenophoroidea Ptenoglossa Janthinoidea Eulimoidea Buccinoidea Columbelloidea Conoidea
Mitroidea Volutoidea Muricoidea Naticoidea Cypraeoidea Lamellarioidea Calyptraeoidea Tonnoidea Ficoidea
Rissoelloidea Architectonicoidea Pyramidelloidea Valvatoidea Acteonoidea Bulloidea Aplysioidea Pleurobranchioidea Spiratelloidea
Ellobioidea Siphonarioidea Lyumnaeoidea Physoidea Planorbioidea Oleacinoidea Succineoidea Vitrinoidea Bivalvia