FRANCE: Basin de Paris, Eocene 325
Columbelloidea

Mitrella columbelloides Mitrella columbelloides
Mitrella columbelloides (4 mm), colno 45153
Bartonian
Mitrella columbelloides (5 mm), colno 43455
Lutetian
Mitrella hordeola Mitrella plateaui
Mitrella hordeola (7 mm), colno 8056
Lutetian
Mitrella plateaui (10 mm), colno 45329
Cuisian
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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