| Dactylioceras | Dactylioceratidae | Ammonoida | Eichwaldiella | Turritellinae | Turritellidae | Cerithioidea | ||
| Dallarca | Arcinae | Arcidae | Arcoidea | Elachisina | Elachisinidae | Rissooidea | ||
| Dalliella | Planaxidae | Cerithioidea | Elaeocyma | Drilliidae | Muricoidea | |||
| Dallitesta | Polinicidae | Naticoidea | Eligmostoma | Vermiculariinae | Turritellidae | Cerithioidea | ||
| Danilia | Eucyclinae | Cirridae | Cirroidea | Ellobium | Ellobiinae | Ellobiidae | Ellobioidea | |
| Daphnella | Daphnellinae | Conidae | Conoidea | Emarginula | Emarginulinae | Fissurellidae | Fissurelloidea | |
| Daphnellopsis | Muricinae | Muricidae | Muricoidea | Endemoconus | Coninae | >Terebridae | Conoidea | |
| Decatopecten | Pectininae | Pectinidae | Pectinoidea | Endiatoma | Clathurellinae | Conidae | Conoidea | |
| Degrangia | Hiatellidae | Hiatelloidea | Engina | Pisaniinae | Buccinidae | Buccinoidea | ||
| Delectopecten | Pectininae | Pectinidae | Pectinoidea | Engoniophos | Photinae | Buccinidae | Buccinoidea | |
| Deltoideum | Gryphaeinae | Gryphaeidae | Ostreoidea | Enida | Trochinae | Cirridae | Cirroidea | |
| Demoulia | Nassariinae | Nassariidae | Buccinoidea | Ennucula | Nuculidae | Nuculoidea | ||
| Dendrostrea | Lophinae | Ostreidae | Ostreoidea | Ensis | Cutellinae | Pharidae | Tellinoidea | |
| Dendroconus | Coninae | Terebridae | Conoidea | Ensitellops | Sportellidae | Cyamioidea | ||
| Dennantia | Peristerniinae | Fasciolariidae | Columbelloidea | Entolium | Entoliidae | Pectinoidea | ||
| Dentalium | Dentaliidae | Dentaliida | Scaphopoda | Entomella | Emarginulinae | Fissurellidae | Fissurelloidea | |
| Dentimargo | Marginellinae | Marginellidae | Volutoidea | Eobania | Helicinae | Helicidae | Helicoidea | |
| Dentimitra | Mitrinae | Mitridae | Mitroidea | Eocithara | Harpinae | Harpidae | Muricoidea | |
| Dermomurex | Muricinae | Muricidae | Muricoidea | Eocolina | Trphorinae | Triphoridae | Ptenoglossa | |
| Desorinassa | Bulliinae | Nassariidae | Buccinoidea | Eocymatium | Personidae | Tonnoidea | ||
| Deussenia | Busyconinae | Melongenidae | Buccinoidea | Eocypraea | Erosariinae | Cypraeidae | Cypraeoidea | |
| Diacria | Cavoliniinae | Cavoliniidae | Spiratelloidea | Eomitra | Mitrinae | Mitridae | Mitroidea | |
| Diala | Dialidae | Cerithioidea | Eopleurotoma | Turrinae | Turridae | Conoidea | ||
| Diastoma | Diastomatinae | Diastomatidae | Cerithioidea | Eoradiolites | Radiolitinae | Radiolitidae | Hippuritoidea | |
| Diceras | Diceratinae | Diceratidae | Hippuritoidea | Eosephaea | Volutilithinae | Volutidae | Volutoidea | |
| Dientomochilus | Aporrhaiidae | Stromboidea | Eosiphonalia | Buccininae | Buccinidae | Buccinoidea | ||
| Digitaria | Astartinae | Astartidae | Astartoidea | Eotibia | Rostellariinae | Strombidae | Stromboidea | |
| Digitariopsis | Astartinae | Astartidae | Astartoidea | Eotrigonia | Trigoniidae | Trigonioidea | ||
| Diloma | Trochinae | Cirridae | Cirroidea | Eotrivia | Eratoidae | Xenophoroidea | ||
| Dimya | Dimyidae | Plicatuloidea | Epalxis | Turrinae | Turridae | Conoidea | ||
| Dimyodon | Dimyidae | Plicatuloidea | Epidirona | Crassispirinae | Turridae | Conoidea | ||
| Dinocardium | Laevicardiinae | Cardiidae | Cardioidea | Epitonium | Epitoniinae | Epitoniidae | Janthinoidea | |
| Diodora | Diodorinae | Fissurellidae | Fissurelloidea | Equichlamys | Chlamydinae | Pectinidae | Pectinoidea | |
| Diplodonta | Ungulinidae | Lucinoidea | Erato | Eratoidae | Xenophoroidea | |||
| Diplomeriza | Terebrinae | Terebridae | Conoidea | Eratopsis | Eratoidae | Xenophoroidea | ||
| Dischides | Gadilidae | Gadilimorpha | Scaphopoda | Eratotrivia | Eratoidae | Xenophoroidea | ||
| Discohelix | Planorbinae | Planorbidae | Planorbioidea | Ergalatax | Ergalataxinae | Muricidae | Muricoidea | |
| Discors | Protocardiinae | Cardiidae | Cardioidea | Ericusa | Fulgorarinae | Volutidae | Volutoidea | |
| Discotectonica | Architectonicinae | Architectonicidae | Architectonicoidea | Erronea | Erroneinae | Cypraeidae | Cypraeoidea | |
| Dissostoma | Pomatiasinae | Pomatiasidae | Littorinoidea | Ervilia | Erviliinae | Mesodesmatidae | Mactroidea | |
| Distorsio | Personidae | Tonnoidea | Erycina | Erycininae | Lasaeidae | Galeommatoidea | ||
| Divalinga | Divaricellinae | Lucinidae | Lucinoidea | Erycinella | Condylocardiinae | Condylocardiidae | Carditoidea | |
| Divaricardium | Protocardiinae | Cardiidae | Cardioidea | Etrema | Clathurellinae | Conidae | Conoidea | |
| Divaricella | Divaricellinae | Lucinidae | Lucinoidea | Eucithara | Mangeliinae | Conidae | Conoidea | |
| Dolabella | Dolabellinae | Aplysidae | Aplysioidea | Eucrassatella | Crassatellinae | Crassatellidae | Crassatelloidea | |
| Dolicholatirus | Peristerniinae | Fasciolariidae | Columbelloidea | Eucycloscala | Liotiinae | Turbinidae | Trochoidea | |
| Dollfusia | Pitarinae | Veneridae | Veneroidea | Eucyclus | Eucyclinae | Cirridae | Cirroidea | |
| Dolorthoceras | Spyroceratinae | Pseudorthoceratid | Pseudorthoceratoid | Eudolichotis | Bulimulinae | Bulimulidae | Bulimuloidea | |
| Dolostoma | Mangeliinae | >Conidae | Conoidea | Eudolium | Tonnidae | Tonnoidea | ||
| Domenginella | Clathurellinae | Conidae | Conoidea | Eufistulana | Gastrochaenidae | Gastrochaenoidea | ||
| Donacilla | Mesodesmatinae | Mesodesmatidae | Mactroidea | Euglandina | Euglandininae | Spiraxidae | Oleacinoidea | |
| Donax | Donacidae | Donacoidea | Euhoplites | Hoplitidae | Ammonoida | |||
| Dorsanum | Dorsaninae | Nassariidae | Buccinoidea | Eula | Littorininae | Littorinidae | Littorinoidea | |
| Dosinia | Venerinae | Veneridae | Veneroidea | Eulima | Eulimidae | Eulimoidea | ||
| Dosinia | Dosininae | Veneridae | Veneroidea | Eulimella | Pyramidellinae | Pyramidellidae | Pyramidelloidea | |
| Dosiniopsis | Pitarinae | Veneridae | Veneroidea | Eumarcia | Tapetinae | Veneridae | Veneroidea | |
| Doxander | Subfamily undecid | Strombidae | Stromboidea | Eumetadrillia | Drilliidae | Muricoidea | ||
| Dreissena | Dreissenidae | Dreissenoidea | Eumitra | Mitrinae | Mitridae | Mitroidea | ||
| Drepanocheilus | Aporrhaiidae | Stromboidea | Eunaticina | Sigaretinae | Naticidae | Naticoidea | ||
| Drillia | Drilliidae | Muricoidea | Euomphalia | Hygromiinae | Hygromiidae | Helicoidea | ||
| Drilliola | Clathurellinae | Conidae | Conoidea | Euomphalus | Euomphalidae | Euomphaloidea | ||
| Drilluta | Fasciolariinae | Fasciolariidae | Columbelloidea | Eupera | Pisidiidae | Corbiculoidea | ||
| Drupa | Rapaninae | Muricidae | Muricoidea | Eupleura | Ocenebrinae | Muricidae | Muricoidea | |
| Drupella | Rapaninae | Muricidae | Muricoidea | Eurypyrene | Pyreninae | Columbellidae | Columbelloidea | |
| Dryptus | Bulimulinae | Bulimulidae | Bulimuloidea | Euspira | Polinicidae | Naticoidea | ||
| Duplipecten | Chlamydinae | Pectinidae | Pectinoidea | Euthria | Buccininae | Buccinidae | Buccinoidea | |
| Eastonia | Lutrariinae | Mactridae | Mactroidea | Euthriofusus | Melongeninae | Melongenidae | Buccinoidea | |
| Ebala | Ebalidae | Pyramidelloidea | Eutrephoceras | Nautilidae | Nautiloidea | Cephalopoda | ||
| Eburneopecten | Pectininae | Pectinidae | Pectinoidea | Evalea | Odostomellinae | Pyramidellidae | Pyramidelloidea | |
| Echinofulgur | Melongeninae | Melongenidae | Buccinoidea | Exechestoma | Potamininae | Potamididae | Cerithioidea | |
| Echinophora | Phaliinae | Cassidae | Tonnoidea | Exilia | Buccininae | Buccinidae | Buccinoidea | |
| Ecphora | Ecphorinae | Muricidae | Muricoidea | Exilifusus | Peristerniinae | Fasciolariidae | Columbelloidea | |
| Ectinochilus | Strombinae | Strombidae | Stromboidea | Exogyra | Exogyrinae | Ostreidae | Ostreoidea | |
| Egerea | Cancellariinae | Cancellariidae | Mitroidea | Exomilus | Daphnellinae | Conidae | Conoidea | |
| Egracina | Divaricellinae | Lucinidae | Lucinoidea | Extractrix | Cancellariinae | Cancellariidae | Mitroidea | |
| Eichwaldia | Turritellinae | Turritellidae | Cerithioidea | |||||