# List of marine gastropod genera in the fossil record

This list of marine gastropod genera in the fossil record is an attempt to list all the genera of sea snails or marine gastropod mollusks which have been found in the fossil record. Nearly all of these are genera of shelled forms, since it is relatively rare for gastropods without a shell (sea slugs) to leave any recognizable traces. It is also worth pointing out that this list of genera represents only a very tiny fraction of the number of genera that must actually have existed over the evolutionary time span: the fossil record is an extremely patchy and exceedingly incomplete pteryrecord of life on earth in earlier geological eras.
Many genera on this list are still extant, are still living now. On the current version of this list, some extant genera are mistakenly marked as extinct, with a "†" next to the name, but this should slowly become more accurate over time as corrections are made.
The list consists of formal genera names in the class Gastropoda; it excludes purely vernacular names. It shows all commonly accepted genera, but it also includes genera which are now considered invalid or doubtful (nomina dubia), and names that were not formally published (nomina nuda), as well as junior synonyms of more established names.
The list also includes some genera which were first described as gastropods, but which are no longer considered to be gastropods, and which in many cases are not even considered to be mollusks.
Genera are listed here alphabetically; no attempt has been made to group them in families or other higher taxa.

## A

* Abderospira
* †Abretiella
* †Abylea
* †Acamptochetus
* †Acamptogenotia
* Acanthina
* †Acanthinucella
* †Acanthonema
* †Acanthotrophia
* †Aciculiscala
* †Acilia
* Acirsa
* †Acirsella
* †Acliceratia
* Aclis
* †Aclisina
* Acmaea
* †Acmaturris
* †Acme
* †Acominia
* †Acrilla
* †Acrilloscala
* †Acrocoelum
* †Acrocolpus
* †Acrocosmia
* †Acroreia
* †Acrosolarium
* †Acrospira
* †Acrostemma
* †Acrostylus
* Actaeon
* †Actaeonella
* †Actaeonellina
* †Actaeonema
* †Actaeonidea
* †Actaeonina
* †Actaeopyramis
* Acteocina
* Actinoleuca
* †Actinopsis
* †Actomphalus
* †Acuminia
* †Acupurpura
* †Adamnestia
* †Adelocythara
* Adelomelon
* †Ademtula
* †Adeorbis
* †Adinus
* †Adiozoptyxis
* †Admete
* †Admetopsis
* †Adusta
* †Aehmospira
* †Aeneator
* †Aepystoma
* †Aequispirella
* Aesopus
* †Afer
* †Affiniptyxis
* †Affrollonia
* †Aforia
* †Africoterebellum
* †Afriscrobs
* †Afrocornulina
* †Afrocypraea
* †Afrovolutilithes
* Agaronia
* †Agasoma
* Agatha
* †Agathirses
* †Agathistoma
* †Agathodonta
* †Agathotoma
* †Agatrix
* †Ageria
* †Agladrillia
* †Aglaoglypta
* †Agnesia
* †Agnewia
* †Agniesella
* †Aiptospira
* †Aizyella
* †Akburunella
* Akera
* Alaba
* †Alabina
* †Alaionema
* †Alariopsis
* †Alaskacirrus
* †Alaskiella
* †Alaskozygopleura
* †Alcidiella
* †Alcira
* Alcithoe
* †Aldrichia
* Alectrion
* Aletes
* †Algaroda
* Alia
* Aliculastrum
* †Aliger
* †Aliofusus
* †Allocosmia
* †Allostrophia
* †Alocaxis
* †Alocospira
* †Altaspiratella
* †Altivasum
* †Altomarginula
* †Altrix
* Alvania
* Alvinia
* Amaea
* Amalda
* †Amarophos
* †Amaura
* †Amaurellina
* †Amauropsina
* †Amauropsis
* †Amauropsona
* †Amaurotoma
* †Amberleya
* †Amblyacrum
* †Ambozone
* †Amekichilus
* †Amekicythara
* †Ameranella
* †Amonilea
* †Amorena
* Amoria
* †Ampezzamilda
* †Ampezzoella
* †Ampezzogyra
* †Ampezzopleura
* †Ampezzoscala
* †Ampezzotrochus
* †Amphinerita
* †Amphiperas
* †Amphiscapha
* Amphissa
* †Amphithalamus
* †Amphitomaria
* †Amphitrochus
* †Amplicolpus
* †Amplogladius
* †Amplosipho
* †Amplostoma
* Ampulla
* †Ampullella
* †Ampullina
* †Ampullinopsis
* †Ampullospira
* †Ampulonatica
* †Amuletum
* †Amyclina
* †Amyssodropa
* Anachis
* †Anacithara
* †Ananias
* †Anapepta
* †Anapetopsis
* †Anarconcha
* †Anastes
* Anatoma
* †Anazola
* †Anbullina
* †Anceps
* †Anchura
* Ancilla
* †Ancillarina
* †Ancillina
* Ancillista
* †Ancillopsis
* †Ancistrolepis
* †Ancistromesus
* †Ancistrosyrinx
* †Anculosa
* †Andangularia
* †Andicula
* †Andonia
* †Anematina
* †Aneurychilus
* †Aneurystoma
* Angaria
* †Anguillospira
* †Angularia
* †Angyomphalus
* †Anisomyon
* †Anisostoma
* †Annepona
* †Anodomaria
* †Anomalisipho
* †Anomalofusus
* †Anomalomya
* †Anomphalus
* †Anoptychia
* †Anoriostoma
* †Anozyga
* †Ansates
* †Antarctodarwinella
* †Anteglossia
* †Antepepta
* †Anticlimax
* †Anticonulus
* †Antiguraleus
* †Antillachelus
* Antillophos
* †Antimelatoma
* †Antimitra
* †Antinodulus
* Antiplanes
* Antisolarium
* †Antitrochus
* †Antizafra
* †Aoteadrillia
* †Apachella
* †Apataxia
* †Aphanoptyxis
* †Aphanotaenia
* †Aphera
* †Apicaria
* †Apiocypraea
* †Apiotoma
* †Aplocus
* Aplustrum
* Apollon (synonym of Ranella)
* Aporrhais
* †Appisania
* †Aptycholathyrus
* †Aptyxiella
* †Aptyxis
* †Aquilofusus
* †Araeodactylus
* †Araeonema
* †Araratella
* †Arastra
* †Arayina
* †Archicypraea
* †Archierato
* Archimediella
* †Archinacella
* Architectonica
* Arctomelon
* †Arcularia
* †Aremella
* Arene
* †Arestorides
* †Argalista
* †Arginula
* Argobuccinum
* †Argyrobessa
* †Argyropeza
* †Ariadnaria
* †Arisostoma
* †Aristerella
* †Aristerostrophia
* †Arizonella
* †Arjamannia
* †Armenostoma
* †Arrhoges
* †Arribazona
* †Arthessidae
* †Ascensovoluta
* †Ascolatirus
* †Aspa
* Aspella
* †Asperdaphne
* †Asperilla
* †Asperiscala
* †Aspidotheca
* †Astandes
* Astele
* Asteracmea
* †Asterohelix
* †Asthenotoma
* Astraea
* †Astralites
* Astralium
* Astyris
* Atalacmea
* †Ataphropsis
* †Ataphrus
* †Ataxocerithium
* †Ataxotrochus
* †Athleta
* Atilia
* †Atira
* †Atkinsonella
* Atlanta
* †Atlantobellerophon
* †Atoma
* †Atractotrema
* †Atraktus
* †Atresius
* †Atrimitra
* †Attenuata
* Attiliosa
* Atys
* †Aulacodiscus
* †Aulacofusus
* †Aulacostrepsis
* †Aulica
* †Aulicina
* †Aurelianella
* †Auriala
* †Aurina
* †Auriptygma
* †Auristomia
* †Auseria
* †Austerum
* †Australolaxispira
* †Australonema
* †Austriacopsis
* †Austroaporrhais
* †Austroclavus
* †Austrocochlis
* †Austrocominella
* †Austrocypraea
* †Austrodrillia
* †Austrofusus
* †Austroharpa
* †Austrolithes
* †Austromitra
* †Austrosassia
* †Austroscalata
* †Austrosphaera
* †Austrotoma
* †Austrotriton
* †Austrotrophon
* †Austroworthenia
* †Avellana
* †Awateria
* †Axelella
* †Axymene

## B

* †Babella
* †Babylonella
* Babylonia
* †Babylonites
* †Bactrocythara
* †Bactroptyxis
* †Bactrospira
* Bailya
* †Bajanerita
* †Bakonyia
* Balcis
* †Balinula
* †Bandelium
* †Bandellina
* †Banis
* †Bankivia
* †Barbarofusus
* †Barbotella
* Barleeia
* †Barnesella
* †Barocospira
* †Barrandecirrus
* †Barrealispira
* †Barroisucaulus
* Bartonia
* Bartschella (synonym of Turbonilla)
* †Barycypraea
* Baryspira (synonym of Amalda)
* †Basilirata
* †Basilissa
* †Basilitrona
* †Bassotrochus
* †Bastropia
* †Bathraspira
* †Bathrotomaria
* Bathybembix
* †Bathyclides
* †Bathygalea
* †Bathytoma
* Batillaria
* †Batillona
* †Bauxia
* †Bayania
* †Baylea
* †Bedeva
* †Beisselia
* †Bela
* †Belatomina
* Bellaspira
* †Bellastraea
* †Bellatara
* †Bellazona
* †Bellerophina
* †Bellerophon
* †Bellifusus
* †Belliscala
* †Belloliva
* †Belonidium
* †Belophos
* †Bembexia
* †Bembicium
* †Bembridgia
* †Bendeia
* †Benoistea
* †Benthomangelia
* †Beraua
* †Beraunia
* †Beretra
* †Beringius
* †Berlieria
* †Bernaya
* †Berthelinia
* Besla
* †Beyrichidiscus
* †Bezanconia
* †Biangularia
* †Bicarina
* †Bicarinella
* †Bicatillus
* †Bifidoscala
* †Biformispira
* †Bifurcium
* †Bigotella
* †Billiemia
* †Biplex
* †Biplica
* Bittiolum
* †Bittiscala
* Bittium
* †Bivetiella
* †Bivetopsia
* †Bivonia
* †Blackdownia
* †Blancia
* †Blasicrura
* †Boeckhia
* †Boehmiola
* †Boettgeriola
* †Boggsia
* †Bohaispira
* †Bohaispiropsis
* †Boiotremus
* Bolinus
* †Bolis
* †Bolma
* †Boltenella
* †Bonellitia
* †Bonnetella
* †Boreocomitas
* †Boreoscala
* Boreotrophon
* †Borestus
* †Borsonella
* †Borsonia
* †Boucotspira
* †Boucotspira
* †Bourgetia
* †Boutillieria
* †Bovicornu
* †Bowdenagaza
* †Bowdenatheca
* †Brachycerithium
* †Brachycythara
* †Brachysphingus
* †Brachystoma
* †Brachystomia
* †Brachytoma
* †Brachytomaria
* †Brachytrema
* †Bradyospira
* †Bramertonia
* †Bridegeina
* †Bridegeites
* †Brilonella
* †Brocchia
* †Brocchinia
* †Brocchitas
* †Brochidium
* †Brochina
* †Brookesena
* Brookula
* †Brouzetia
* †Bruclarkia
* †Brunonia
* †Bubovicus
* †Bucanella
* †Bucania
* †Bucanoides
* †Bucanopsis
* †Bucanospira
* †Buccinanops
* †Buccinaria
* †Buccinofusus
* †Buccinopsis
* †Buccinorbis
* †Buccinulum
* Buccinum
* †Buccitriton
* †Bucconia
* †Buchozia
* †Buckmanina
* †Buechelia
* †Bufonariella
* †Bulbihastula
* †Bulbus
* †Bulimactaeon
* †Bulimorpha
* Bulla
* Bullata
* †Bullia
* †Bullina
* †Bulliopsis
* †Bullopsis
* †Bulovia
* †Burdikinia
* Bursa
* †Burtinella
* Buscotypus
* Busycon
* †Buvignieria
* †Byramia
* †Byzantia

## C

* †Cabania
* †Cabestanna
* Caecum
* †Caesia
* †Calaurops
* †Calcarata
* †Calcitrapessa
* †Calicantharus
* †Caliendrum
* †Callianax
* †Calliobasis
* †Calliomphalus
* Calliostoma
* †Calliotectum
* †Calliotropis
* †Calliovarica
* †Callispira
* †Callistadia
* †Callistele
* †Callistocypraea
* †Callitomaria
* †Callolongchaeus
* †Callopoma
* †Callotrochus
* †Callusaria
* †Calodisculus
* †Calophos
* †Calorebama
* Calotrophon
* †Calpurna
* †Calthalotia
* †Calvadosiella
* †Calverturris
* Calyptraea
* †Calyptraphorus
* †Calyptroides
* †Calyptropsis
* †Camarnia
* †Cambodgia
* †Campanelle
* †Campanile
* †Campanilopa
* †Campbellospira
* †Campichia
* †Camponaxis
* †Camponeila
* †Camposcala
* †Camptoceratops
* †Campylacrum
* †Canaliscala
* Canarium (synonym of Strombus (Canarium) )
* †Cancellaria
* †Cancellariella
* †Cancelrana
* †Cancilla
* †Candinia
* †Canepina
* Cantharidella
* Cantharidus
* †Cantharulus
* Cantharus
* †Cantrainea
* †Capulacmaea
* †Capulus
* †Carboninia
* †Cardinalia
* †Careliopsis
* †Caribiella
* †Caricella
* †Carinacca
* Carinaria
* †Carinaropsis
* †Carinator
* †Carinodrillia
* †Carinomphalus
* †Carinotropsis
* †Carota
* †Caseyella
* †Casimiria
* Casmaria
* †Cassianastraea
* †Cassianaxis
* †Cassianebala
* †Cassianilda
* †Cassianocirrus
* †Cassianozyga
* †Cassidaria
* †Cassiope
* †Cassiopella
* †Cassipelia
* Cassis
* †Catantostoma
* †Cataschisma
* †Catazona
* †Catazone
* †Catenoscala
* †Catenotoma
* †Catilon
* †Caucasella
* †Cautotriphora
* †Caveola
* †Cavernisa
* †Cavilabium
* †Caviumbonia
* Cavolina
* †Celatoconus
* Cellana
* †Cenomanella
* †Centrifuga
* †Centrifugus
* †Cepatia
* †Ceratia
* †Ceratopea
* †Ceratostoma
* †Ceraunocochlis
* †Ceritella
* Cerithidea
* †Cerithideops
* †Cerithideopsilla
* †Cerithideopsis
* Cerithidium
* †Cerithiella
* †Cerithina
* †Cerithinella
* †Cerithioclava
* †Cerithiocyga
* †Cerithioderma
* †Cerithioides
* †Cerithiomorpha
* †Cerithiopsida
* †Cerithiopsidella
* Cerithiopsis
* †Cerithiscala
* Cerithium
* †Cerithopsina
* †Chalarostrepsis
* †Charadreum
* Charonia
* †Chartroniella
* †Chasmotheca
* †Chauvetia
* †Chavanicerithium
* †Chedevillia
* Cheilea
* †Cheilospicata
* †Cheilotomona
* †Chelotia
* †Chelyconus
* †Chemnitzia
* †Chepultapecia
* †Chesaclava
* †Chesasyrinx
* †Chesathais
* †Chesatrophon
* †Chevallieria
* Chicoreus
* †Chileutomia
* †Chilocyclus
* †Chilodonta
* †Chilodontoidea
* †Chingua
* †Chippewaella
* †Chiralithes
* †Chiraluta
* †Chlathrus
* Chlorostoma
* †Chlupacispira
* †Chondrocerithium
* †Chorus
* †Christitys
* †Chrysallida
* †Chrysame
* †Chrysostoma
* †Cibecuia
* †Cidarina
* †Cigelirina
* †Cilara
* †Cimoliocentrum
* †Cimolithium
* †Cinclidonema
* †Cinctiscala
* Cingula
* Cingulina
* †Cinguliturris
* †Cinulia
* †Circulopsis
* †Circuloscala
* †Circulus
* †Cirillia
* †Cirrus
* †Cirsocerithium
* †Cirsochilus
* †Cirsomphalus
* Cirsonella
* †Cirsope
* †Cirsostylus
* Cirsotrema
* Cittarium
* †Claibornia
* †Clanculopsis
* Clanculus
* †Clathrobaculus
* Clathrodrillia
* Clathromangelia
* †Clathronema
* †Clathroscala
* †Clathrospira
* †Clathrus
* †Clathurella
* †Clava
* †Clavatula
* †Clavellofusus
* †Clavidrupa
* †Clavilithes
* †Claviscala
* †Clavocerithium
* †Clavstoma
* †Clavus
* †Cleobula
* †Cleotrivia
* †Clifdenia
* †Climacina
* †Climacopoma
* †Clinopegma
* †Clinura
* †Clinurella
* †Clinuropsis
* Clio
* †Clivuloturris
* †Closia
* †Closteriscus
* †Closteroides
* †Cloughtonia
* †Clypeola
* †Clypeolum
* †Clypeomorus
* †Clypidina
* †Coalingodea
* †Coanollonia
* †Coccopigya
* †Cocculina
* †Cocculinella
* †Cochiolepis
* †Cochleochilus
* Cochlespira
* †Cochlespirella
* †Cochlespiropsis
* †Cochliconus
* †Codinella
* †Codonocheilus
* †Coelobolma
* †Coelocaulus
* †Coelocentrus
* †Coelochrysalis
* †Coelocyclus
* †Coelodiscus
* †Coeloscapha
* †Coelostylina
* †Coelotrochus
* †Coelozone
* †Coemansia
* †Colina
* †Collabrina
* †Colliculus
* †Collina
* Collisella
* †Collonia
* †Collonista
* †Colostracon
* †Colpites
* †Colpomphalus
* †Colposigma
* †Colpospira
* †Colpostomia
* Colubraria
* †Colubrella
* †Colubrellina
* Columbarium
* Columbella
* †Columbellaria
* †Columbellina
* †Columbellisipho
* †Columbellopsis
* Colus
* †Coluzea
* †Colwellia
* †Comarmondia
* †Cominella
* †Cominista
* †Cominula
* †Comitas
* †Commonozonispira
* Compsodrillia
* †Compsonema
* †Conactaeon
* Concholepas
* †Conchothyra
* †Concinnispira
* †Confusiscala
* †Conilithes
* †Coninoda
* †Coniscala
* Conjectura
* †Conocerithium
* †Conoidacmaea
* †Conolithes
* †Conominolia
* †Conomitra
* †Conomurex
* †Conorbis
* †Conorhytis
* †Conotoma
* †Conotomaria
* †Consobrinella
* †Contemniscala
* †Contortella
* †Conuber
* Conus
* †Cookia
* †Cophocara
* †Copidocatomus
* †Coptochetus
* †Coptosipho
* †Coptostoma
* †Coptostomella
* †Coraeophos
* †Coralliophila
* †Cordieria
* †Cordispira
* †Coriandria
* †Cornulina
* †Coronatica
* †Coronia
* †Coroniopsis
* †Coroniscala
* †Coronopsis
* †Corsania
* †Cortinella
* †Cosmasyrinx
* †Cosmetalepas
* †Cosmocerithium
* †Cosmolithes
* †Cosmophiline
* †Cossmannea
* †Cossmannia
* †Cossmannica
* †Costaella
* Costellaria
* †Costoanachis
* †Costosyrnola
* †Cotonopsis
* †Cottonia
* †Couthouyia
* †Cowlitzia
* †Craginia
* †Cranopsis
* †Craspedostoma
* †Crassilabrum
* †Crassimarginata
* †Crassimurex
* †Crassiscala
* Crassispira
* †Crassispirella
* †Crassopleura
* †Crawfordina
* †Crebriscala
* †Cremides
* †Crenaturricula
* †Crenetocerithium
* †Crenilabium
* †Crenilunula
* †Crenistriella
* †Crenisutura
* †Creniturbo
* †Crenulazone
* †Creonella
* †Crepidula
* †Crepipatella
* †Creseis
* †Cretaceomurex
* †Cribraria
* †Crimella
* †Crisposcala
* †Cristalloella
* †Crommium
* †Cronia
* †Crossata
* †Crossea
* †Crosseola
* †Crossoceras
* †Crossostoma
* †Crossotrema
* Crucibulum (gastropodCrucibulum)
* †Cruziturricula
* †Cryoturris
* †Cryptaulax
* †Cryptoborsonia
* †Cryptobranchia
* †Cryptochorda
* †Cryptoconus
* †Cryptocordieria
* †Cryptomella
* †Cryptonatica
* †Cryptonerita
* †Cryptoplocus
* †Cryptoptyxis
* †Cryptorhytis
* †Cryptospira
* †Ctenilyria
* †Ctenocolpus
* †Cubestana
* †Culmia
* †Cupaniella
* †Cuphosolenus
* †Cuphotifer
* †Cupidoliva
* †Curetia
* †Cuvierina
* †Cyclites
* †Cyclobathmus
* †Cyclodostomia
* †Cyclomolops
* †Cyclonema
* †Cyclope
* †Cycloscala
* †Cycloscena
* †Cyclospongia
* †Cyclostomaria
* †Cyclostrema
* †Cyclostremela
* Cyclostremiscus
* †Cyclostromella
* †Cyclotheca
* †Cyclothyca
* †Cycloturbo
* †Cyclozyga
* Cylichna
* †Cylichnania
* †Cylichnatys
* Cylichnella
* †Cylichnina
* †Cylichnopsis
* †Cylicioscapha
* †Cylinder
* †Cylindriscala
* †Cylindritella
* †Cylindrites
* †Cylindritopsis
* †Cylindrobullina
* †Cylindromitra
* †Cylindrotruncatum
* †Cyllene
* †Cyllenina
* †Cymakra
* †Cymatiella
* Cymatium
* †Cymatophos
* †Cymatospira
* †Cymatosyrinx
* Cymbiola
* †Cymbium
* †Cymbularia
* †Cymenorhytis
* †Cymia
* †Cynisca
* †Cyniscella
* Cyphoma
* †Cyphonochelus
* Cypraea
* Cypraecassis
* †Cypraedia
* †Cypraeerato
* †Cypraeogemmula
* †Cypraeopsis
* †Cypraeorbis
* †Cypraeotrivia
* †Cyproglobina
* †Cypropterina
* †Cyrbasia
* †Cyrtochetus
* †Cyrtospira
* †Cyrtostropha
* †Cyrtulotibia
* †Cythara
* †Cytharella

## D

* †Dactylidella
* †Dactylidia
* †Daidia
* †Dalliella
* †Dallitesta
* †Damesia
* Daphnella
* †Daphnobela
* †Darbya
* †Dardanula
* †Daronia
* †Dasyostoma
* †Decorospira
* †Deianira
* †Delphinulopsis
* †Dembabaspira
* †Demoulia
* †Denayella
* †Dendroconus
* †Dennantia
* †Dentallopoma
* Dentimargo
* †Dentiscala
* †Dentistyla
* †Dentiterebra
* †Dentrimitra
* Depressiscala
* Dermomurex
* †Derstolida
* †Dertonia
* †Desertospira
* †Deshayesia
* †Deslongchampsia
* †Desorinassa
* †Deussenia
* †Devonozyga
* †Diacria
* †Diaerecallus
* Diala
* †Dialopsis
* †Dialytostoma
* †Diameza
* Diaphana
* †Diarthema
* Diastoma
* †Diastomella
* †Diatinostoma
* †Diatrypesis
* †Dibaphimitra
* †Dibaphus
* †Dicellonema
* †Dichostasia
* †Dickinsiella
* †Diconomorpha
* †Dicosmos
* †Dicroloma
* †Dictyobembix
* †Dictyotomaria
* †Didianema
* †Diempterus
* †Dientomochilus
* †Dietrichiella
* †Digitolabrum
* †Dihelice
* †Dilatilabrum
* Diloma
* †Diminovula
* †Dimorphotectus
* †Dinaxis
* Diodora
* †Diplochilus
* †Diploconula
* †Diplocyma
* †Diplomeriza
* †Diplomitra
* †Diplozone
* †Diptychochilus
* †Diptyxiella
* †Dirachis
* †Dircella
* †Dirhachopea
* †Dirocerithium
* †Discobasis
* †Discocirris
* †Discogenus
* †Discogonius
* †Discohelix
* †Discopsis
* †Discordichilus
* †Discoscala
* †Discotectonica
* †Discotectus
* †Discotheca
* †Discotoma
* †Discotomaria
* †Discotropis
* †Disculus
* †Disoketa
* †Dispotaea
* †Dissochilus
* Distorsio
* †Ditretus
* †Dizoniopsis
* †Docomphala
* †Doellocosmia
* Dolabella
* †Dolicholatirus
* †Dolichupis
* †Dolicrassea
* †Doliella
* †Doliocassis
* †Dolomena
* †Dolomitella
* †Dolostoma
* †Domerginella
* †Donaldiella
* †Donaldina
* †Dongiovannia
* †Dorsanum
* †Dorsina
* †Dostia
* †Douvilleia
* †Douvilletoma
* †Doxander
* †Drepanocheilus
* †Drepanoconcho
* Drillia
* †Drilliola
* †Drilluta
* †Druidwilsonia
* Drupa
* †Dumasella
* †Dunkeria
* Duplicaria
* †Dutrochus
* †Dyeria

## E

* Eatoniella
* †Ebala
* †Eburna
* †Eburnopsis
* †Eccliseogyra
* †Ecculiomphalus
* †Eccyliopterus
* †Echinellopsis
* †Echinimathilda
* †Echininus
* †Echinobathra
* †Echinocirrus
* †Echinofulgur
* †Echinophoria
* †Echinoturris
* †Ecphora
* †Ecphorosycon
* †Ectinochilus
* †Ectomaria
* †Edithais
* †Egerea
* †Egestas
* †Egilina
* †Eglisia
* †Egotistica
* †Ehlersina
* †Eichwaldiella
* †Eirlysia
* †Eiselia
* Elachorbis
* †Elaeocyma
* †Elasmonema
* †Elatioriella
* †Eleganella
* †Elegantiscala
* Elephantanellum
* †Eleutherospira
* †Eligmoloxus
* †Ellatrivia
* †Ellicea
* †Ellipsoscapha
* †Elliptovermetus
* †Ellisella
* †Elysiacea
* Emarginula
* †Emarginulina
* †Emersonia
* †Enaeta
* †Enantiostoma
* †Enatimene
* †Enclyclomphalus
* †Endianaulax
* †Endiaplocus
* †Endiataenia
* †Endiatoma
* †Endiatrachelus
* †Endopachychilus
* †Endoptygma
* Engina
* Engoniophos
* †Enida
* †Entacanthus
* Entemnotrochus
* †Entomella
* †Entomope
* †Eoacteon
* †Eoatlanta
* †Eobucania
* †Eocalliostoma
* †Eocerithium
* †Eocernina
* †Eocithara
* †Eoclathurella
* †Eocymatium
* †Eocypraea
* †Eocythara
* †Eodrilla
* †Eoharpa
* †Eoliotina
* †Eomathilda
* †Eopleurotoma
* †Eoptychia
* †Eoranella
* †Eosinica
* †Eosipho
* †Eosiphonalia
* †Eosolariella
* †Eosolarium
* †Eosurcula
* †Eothesbia
* †Eotomaria
* †Eotrivia
* †Eotrochactaeon
* †Eotrochus
* †Eoturris
* †Eotympanotonus
* †Eovasum
* †Eovolutilithes
* †Eovolva
* †Eoxancus
* †Epalxis
* †Epetrium
* †Epheria
* †Epideira
* †Epidirella
* †Epidirona
* †Epifaxis
* †Epiptychia
* †Episcynia
* Epitonium
* †Epulotrochus
* Erato
* Eratoidea
* †Eratopsis
* †Eratotrivia
* †Erginus
* †Ericusa
* †Eripachya
* †Eriptycha
* Erosaria
* †Erronea
* †Erymarella
* †Escoffieria
* †Estea
* †Ethalia
* †Etrema
* †Etremopsis
* †Euactaeonina
* †Eubela
* †Eucheilodon
* Euchelus
* †Euchilotheca
* †Euchrysalis
* †Euclathurella
* †Euclia
* †Eucochlis
* †Eucominia
* †Euconactaeon
* †Euconia
* †Euconospira
* †Eucycloidea
* †Eucyclomphalus
* †Eucycloscala
* †Eucyclus
* †Eucymba
* †Eucypraedia
* Eudolium
* †Eugabrielona
* Eulima
* Eulimastoma
* †Eulimella
* †Eulimene
* †Eumetadrillia
* †Eumetula
* †Eumitra
* †Eunaticina
* †Eunema
* †Eunemopsis
* †Euninella
* †Euomphalopsis
* †Euomphalopterus
* †Euomphalus
* Euparthenia
* †Euphemitella
* †Euphemites
* †Euphemitopsis
* †Euphyllon
* Eupleura
* †Euplica
* †Euprotomus
* †Euriclanculus
* †Eurissolina
* †Euryalox
* †Eurydike
* †Euryentmema
* †Euryentome
* †Euryochetus
* †Eurypyrene
* †Eurytorus
* †Euryzone
* †Euscobinella
* †Euseila
* Euspira
* †Euspirocrommium
* †Eustoma
* †Eustomia
* †Eustrombus
* †Euthria
* †Euthriofusus
* †Euthymella
* †Euthyrachis
* †Euthystylus
* †Eutinochilus
* †Euzone
* †Evalea
* †Evarnula
* †Evelynella
* †Ewekoroia
* †Ewekorolaxis
* †Exechestoma
* †Exechocirsus
* †Exilia
* †Exilifusus
* †Exiloidea
* †Exlessia
* †Exomiliopsis
* †Extendilabrum
* †Eymarella

## F

* †Fadaiella
* †Faloriella
* †Falsicolus
* †Falsifusus
* †Falsostyliola
* †Falsostyliola
* †Faluniella
* Fartulum
* Fasciolaria
* †Fascioplex
* †Fascivelvata
* †Fastigiella
* Fautor
* Favartia
* †Favria
* †Favriella
* †Fax
* †Faxxia
* †Feneoniana
* †Fenestrosyrinx
* †Fenolignum
* †Fibula
* †Fibulella
* †Fibuloptygmatis
* †Fibuloptyxis
* †Ficopsis
* †Fictoacteon
* †Fictonoba
* †Ficulomorpha
* †Ficulopsis
* Ficus
* †Filodrilla
* †Fimbriatella
* †Finlayola
* †Fischeriella
* Fissurella
* †Fissurellidea
* †Fissurisepta
* †Flacilla
* †Flemmingia
* †Fletcherviewia
* †Flexopteron
* †Floribella
* †Floripatella
* †Floyda
* †Folina
* †Foratiscala
* Forreria
* †Forsia
* †Forskaelena
* †Fossacypraea
* †Fossariopsis
* Fossarius
* †Fossatrivia
* †Fredenia
* †Friginatica
* †Frombachia
* †Fujispira
* †Fulgerca
* Fulgoraria
* †Fulguroficus
* †Fulgurofusus
* †Funis
* Funiscala
* †Fuscibuccinum
* †Fuscoscala
* †Fusiaphera
* †Fusiguraleus
* †Fusimilis
* †Fusimitra
* Fusinus
* †Fusiptyxis
* †Fusispira
* †Fusitoma
* Fusitriton
* †Fusitron
* †Fusiturricula
* †Fusiturris
* †Fusoficula
* †Fusoidella
* †Fusoterebra
* †Fusus
* †Futhystylus
* †Fyfea

## G

* †Gabrielona
* †Galeodaria
* †Galeodea
* †Galeodina
* †Galeodinopsis
* †Galeoocorys
* †Galericulus
* †Galeropsis
* †Gamizyga
* †Gammadiscus
* †Gamopleura
* †Ganesa
* †Gargania
* †Garnotia
* †Garramites
* †Gasconadia
* †Gazameda
* †Gegania
* †Gelagna
* †Gelasinostoma
* †Gemaspira
* †Gemmaterebra
* †Gemmellaroia
* †Gemmoliva
* †Gemmula
* †Gemmuloborsonia
* †Genkaimurex
* †Genota
* †Geolcomia
* †Georgia
* †Gergovia
* Gibberula
* †Gibberulina
* †Gibberulus
* Gibbula
* †Gigantocapulus
* †Gigantocypraea
* †Gigantogonia
* †Gilbertina
* †Gilbertturricula
* †Ginebis
* †Girtyspira
* †Girvania
* †Gisortia
* †Gispyrella
* †Glabella
* †Glabrocingulum
* †Glaphyrina
* †Glauconia
* †Glauconiella
* †Globiconcha
* †Globiomorpha
* †Globisinum
* †Globodrillia
* †Globonema
* †Globozygia
* †Globularia
* †Globulocerithium
* †Glosia
* †Glossaulax
* †Glyphodeta
* †Glyphostoma
* †Glyphoturris
* †Glyptochrysalis
* †Glyptomaria
* †Glyptospira
* †Glyptostyla
* †Glyptotoma
* †Glyptozaria
* †Gomphopages
* †Goniasma
* †Goniatogyra
* †Goniocheila
* †Gonioconcha
* †Goniocylichna
* †Goniocylindrites
* †Goniodostomia
* †Goniogyra
* †Gonioptyxis
* †Goniospira
* †Gonysycon
* †Gonzagia
* †Gosavia
* †Gosseletina
* †Gothicispira
* †Gouetina
* †Gougerotia
* †Gourmya
* †Graciliala
* †Gracilipurpura
* †Gracilispira
* †Gradiella
* †Grandostoma
* †Granosolarium
* †Grantlandispira
* †Granula
* Granulina
* †Granulittorina
* †Granulolabium
* †Graphidula
* †Graphiocomassa
* †Graphis
* †Gregorioiscala
* †Groomodiscus
* †Guelphinacella
* †Guidonia
* †Guildfordia
* †Guizhouia
* †Guizospira
* †Gumina
* †Guraleus
* †Gutturnium
* †Gymnarus
* †Gymnentome
* †Gymnocerithium
* †Gyrineum
* †Gyrodes
* †Gyrodoma
* †Gyroma
* †Gyronema
* Gyroscala
* †Gyrospira
* †Gyrotropis

## H

* †Hacobjania
* †Hadriania
* †Hahazimania
* †Halia
* †Haliotiomorpha
* Haliotis
* †Haliphoebus
* Halistylus
* †Halloysia
* †Hallstadtia
* †Haloginella
* Haminoea
* †Hamlinia
* †Hammatospira
* †Hamptoniella
* †Hamusina
* †Hanaibursa
* †Hanaispira
* †Hanetia
* †Hapalorbis
* †Haplocochlias
* †Haploptyxis
* †Haplospira
* †Haplovoluta
* †Harfordia
* †Harmatia
* †Harmeria
* Harpa
* †Harpago
* †Harpagodes
* †Harpella
* †Harpula
* †Harrisianella
* †Hartungia
* Hastula
* †Haurakia
* †Haustator
* Haustellum
* †Hautura
* †Hayamiella
* †Haydenia
* †Hebeseila
* †Hebra
* †Heida
* †Heilprinia
* Helcion
* Heliacus
* †Helicacanthus
* †Helicaulax
* †Helicocryptus
* †Helicospira
* †Helicotoma
* †Heligmope
* †Heligmostylus
* †Heligmotenia
* †Heligmotoma
* †Helminthozyga
* †Hemiacirsa
* †Hemicerithium
* †Hemichenopus
* †Hemiconus
* †Hemifusus
* †Hemipleurotoma
* †Hemiplicatula
* †Hemisurcula
* Hemitoma
* †Hemizyga
* †Heniastoma
* †Hennocquia
* †Hercorhynchus
* †Hermania
* †Herminespina
* Herpetopoma
* Hespererato
* †Hesperiella
* †Hesperiturris
* †Hesperocirrus
* †Heterocerithiopsis
* †Heterocithara
* †Heterogyrella
* †Heteronodosus
* †Heteroptygmatis
* †Heterospira
* †Heterotrema
* †Hexachorda
* †Hexaglauconia
* Hexaplex
* †Hilda
* †Hillites
* †Hima
* †Himantonia
* †Hinia
* †Hippocampoides
* †Hippochrene
* Hipponix
* †Hiromurex
* †Hirotyphis
* †Hirsonella
* †Hirtoscala
* †Hispanosinuites
* †Hispidofusus
* †Hiwia
* †Hologyra
* †Holopea
* †Holzapfelia
* Homalopoma
* †Hopkinsiana
* †Hordeulima
* †Horiostomella
* †Horizostoma
* †Hormotoma
* †Hormotomina
* †Horologium
* †Houdasia
* †Houzeauia
* †Hudlestonella
* †Humiliworthenia
* †Hungariella
* †Hwaania
* †Hyala
* Hyalina
* †Hyalocylis
* †Hyalorisia
* †Hyaloscala
* †Hybochelus
* †Hydrotribulus
* †Hyperacanthus
* †Hypergonia
* †Hyphantozyga
* †Hypocassis
* †Hypodema
* †Hypselentoma
* †Hypsipleura
* †Hypterita
* †Hystricoceras
* †Hystrivasum

## I

* †Ianthinopsis
* †Iddingsia
* †Idioraphe
* †Ihungia
* †Ilanga
* †Iljinella
* Illyanassa
* †Imbricaria
* †Incilaster
* †Incisilabium
* †Indocerithium
* †Indovoluta
* †Infracoronia
* †Infundibulops
* †Inglisella
* †Inquisitor
* †Insolentia
* †Involuta
* †Iolaea
* †Iothia
* †Iphiana
* †Iravadia
* Iredalina
* Iredalula
* †Isanda
* †Ischnoptygma
* Iselica
* †Isfarispira
* †Ishnula
* †Islipia
* †Isonema
* †Isospira
* †Ispharina
* †Isselia
* †Italoptygmatis
* †Ithycythara
* †Itia
* †Itieria
* †Itomelania
* †Itruvia
* †Ivara
* †Ividella

## J

* †Jaccardiella
* †Janacus
* †Janiopsis
* Janthina
* †Japelion
* †Jaton
* †Jedria
* †Jeffreysina
* Jenneria
* †Jetwoodsia
* †Jogjacartanus
* †Johannaia
* †Johnstrupia
* †Josepha
* †Jousseemea
* Jujubinus
* Julia
* †Jumala
* †Junghuhnia
* †Jurassiphorus

## K

* †Kaawatina
* †Kahua
* †Kaiparapelta
* †Kaitangata
* †Kaitoa
* †Kangapaya
* †Kangilioptera
* †Kangxianospira
* †Kapua
* †Katoptychia
* †Katosira
* †Kaunhowenia
* †Kaurnella
* †Kawanamia
* †Kaweka
* †Keeneia
* †Keepingia
* †Keilostoma
* Kelletia
* †Keration
* †Kestocenbra
* †Khetella
* †Khumerspira
* †Kiaeromphalus
* †Kimina
* †Kinishbia
* †Kinkaidia
* †Kishinewia
* †Kittlia
* †Kittliconcha
* †Kittlidiscus
* †Kittlistylus
* †Kittlitrochus
* †Kiviasukkaan
* †Kjerulfonema
* †Kleinacteon
* Knefastia
* †Knightella
* †Knightites
* †Kodymites
* †Kokenella
* †Kokenospira
* †Koniakaua
* †Korovinia
* †Kotakaia
* †Krachia
* †Krebsia
* †Kuroshioturris
* Kurtziella
* †Kyndalyna

## L

* †Labiostrombus
* †Labridens
* †Labrocuspis
* †Laccinum
* †Lachryma
* †Lacinia
* †Lacriforma
* Lacuna
* †Lacunaria
* †Lacunella
* †Lacunina
* †Lacunospira
* †Lacurnaria
* †Ladinotrochus
* †Ladinula
* †Laetifautor
* †Laevella
* †Laevibaculus
* †Laevibuccinum
* †Laeviconulus
* †Laevihastula
* †Laevinerinea
* †Laeviselica
* †Laevistrombus
* †Laeviterebrum
* †Laevitomaria
* †Laevityphis
* †Lagunitus
* †Laiocochlis
* Lambis
* Lamellaria
* †Lamelliphorus
* †Lamellospira
* †Lampanella
* †Lampasopsis
* †Lamprodoma
* †Lamprodomina
* †Lampusia
* †Lancedellia
* †Lapparia
* †Lathyrulus
* †Latiala
* Latiaxis
* †Latifusus
* †Latirolagena
* Latirus
* †Latisipho
* †Latitaenia
* †Laubella
* †Lautoconus
* †Laxispira
* †Leaella
* †Lecanospira
* †Leiopyrga
* †Leiorhinus
* †Leiostraca
* †Leiotrochus
* †Lemintina
* †Lemniscolittorina
* †Lenitrophon
* †Lenticularis
* †Lentigo
* Lepeta
* †Lepetella
* †Lepetopsis
* †Lepicythara
* †Lepidotrochus
* †Leporemax
* †Leporicypraea
* Lepsiella
* †Lepsithais
* †Leptadrillia
* †Leptegauana
* †Leptocolpus
* †Leptoconus
* †Leptomaria
* †Leptomphalus
* †Leptomurex
* †Leptoptygma
* †Leptorima
* †Leptoscapha
* †Leptosurcula
* †Leptothyra
* †Leptothyropsis
* †Leptozone
* †Leptozyga
* †Lesperonia
* †Lesueurilla
* †Leucorhynchia
* Leucosyrinx
* Leucozonia
* †Leufroyia
* †Levella
* †Levenia
* †Leviathania
* †Levifusus
* †Lewinskia
* †Lewisiella
* †Liaohenia
* †Libycerithium
* †Lienardia
* †Ligatella
* †Lilax
* †Liljevallospira
* Liloa
* Limacina
* †Limneria
* Limulatys
* †Linatella
* †Linemera
* †Linglingella
* †Liniaxis
* †Linopyrga
* †Linsleyella
* †Liocarenus
* †Liocerithium
* †Liochlamys
* †Liocium
* †Lioglyphostoma
* †Liomesus
* †Liopeplum
* †Liospira
* †Liotella
* Liotia
* †Liotina
* †Lippistes
* †Liracassis
* †Liracraea
* †Lirastrombina
* †Lirasyrinx
* †Liratilia
* †Liratomina
* †Lirobittium
* †Lirocingula
* †Lirofusus
* †Lironoba
* †Lirosoma
* †Lirularia
* †Lisbonia
* †Lischkeia
* †Lispodesthes
* †Lissapiopsis
* †Lissochilus
* †Lissomuricopsis
* †Lissospira
* Lissotesta
* Lissotestella
* †Lithoconus
* †Lithophysema
* Lithopoma
* †Lithotrochus
* Litiopa
* Littoraria
* Littorina
* †Littorinides
* †Littorinolacuna
* †Littorinopsis
* †Littorniscala
* Livonia
* †Lodanaria
* Lodderena
* †Lodderia
* †Lomia
* †Lomirosa
* †Longchaeus
* †Longicerithium
* †Longoconcha
* †Longstaffia
* †Lophioturris
* †Lophocochlias
* †Lophonema
* †Lophospira
* Lottia
* †Lowenstamia
* †Loxisonia
* †Loxobidens
* †Loxonema
* †Loxoplocus
* †Loxoptyxis
* †Loxotaphrus
* Lucapina
* Lucapinella
* †Lucerapex
* †Lucidestea
* †Luciella
* †Luciellina
* Lunatia
* Lunatica
* †Lunella
* †Lunulazona
* †Lupira
* †Luponovula
* †Luria
* †Lutema
* †Lutima
* †Lydiphnis
* †Lyncina
* †Lyosoma
* †Lyria
* †Lyrianella
* †Lyrischapa
* †Lyromangelia
* †Lyropurpura
* †Lyrosurcula
* †Lyrotyphis
* †Lysiogyrus
* †Lysis
* †Lytospira

## M

* †Macilentos
* †Macluritella
* †Maclurites
* Macrocypraea
* †Macrodostomia
* †Macromphalus
* Macron
* †Macroniscus
* †Macrosinus
* †Macrozafra
* †Macrurella
* †Madiella
* Magilus
* †Magnatica
* †Magnicapulus
* †Makiyamaia
* †Malayaspira
* Malea
* †Malluvium
* †Mambrinia
* †Mamiconus
* †Mammilla
* †Manawatawhia
* †Mancorus
* †Mandolina
* Mangelia
* †Mangiliella
* †Manzanospira
* †Manzonia
* Maoricolpus
* †Maoricrypta
* †Maoriscaphander
* †Maoritomella
* †Maorivetia
* †Marbodeia
* Marevalvata
* Margarella
* †Margaritella
* Margarites
* Marginella
* †Margineulima
* †Mariacassia
* †Mariacolpus
* †Mariadrillia
* †Mariafusus
* †Marianarona
* †Mariasalpinx
* †Mariasveltia
* †Mariaturricula
* †Marinauris
* †Mariothia
* †Mariottia
* †Marmarostoma
* †Marmolatella
* †Marshallaria
* †Marshallena
* †Marsupina
* †Marticia
* †Marwickara
* †Massyla
* †Mastigospira
* †Mataxa
* Mathilda
* †Mathurifusus
* †Maudrillia
* †Mauithoe
* †Maurea
* †Mauria
* †Mauritia
* †Mauryna
* †Maussenetia
* Maxwellia
* †Mayeria
* †Mazzalina
* †Meandrella
* †Mecoliotia
* †Mediargo
* †Medionapus
* †Medoriopsis
* †Meekospira
* †Megalatractus
* †Megalocypraea
* †Megalomphala
* †Megalomphalus
* †Megalonoda
* †Megastomia
* †Megasurcula
* †Megatebennus
* Megathura
* †Megistostoma
* Meioceras
* †Melagraphia
* Melanatria
* Melanella
* †Melanioptyxis
* †Melapium
* †Melaraphe
* †Melatoma
* †Mellarium
* †Mellevillia
* Melongena
* †Menestho
* †Mennessieria
* †Menthafonia
* †Merelina
* †Merica
* †Mericella
* †Merriamites
* †Mesalia
* †Mesochilotoma
* †Mesocoelia
* †Mesogena
* †Mesoglauconia
* †Mesohalina
* †Mesoneritina
* †Mesorhytis
* †Mesospira
* †Mesotrochactaeon
* †Mesovalvata
* †Metacerithium
* †Metaconulus
* †Metamelon
* Metaxia
* †Metoptoma
* †Metorthonema
* †Metriomphalus
* †Metula
* †Metulella
* †Mexicotrochaetaeon
* †Micantapex
* †Michaletia
* †Michela
* †Michelia
* †Micheliopsis
* †Micraclathurella
* †Micranellium
* Micrelenchus
* †Micrentoma
* †Micreschara
* †Microcheilus
* †Microdoma
* †Microdrillia
* †Microfulgur
* †Microfusus
* †Microgaza
* †Microlacuna
* †Microliotia
* †Micromphalina
* †Micromphalus
* †Microptychis
* †Microrhytis
* †Microschiza
* †Microstelma
* †Microsurcula
* †Microtaphrus
* †Microthyca
* †Microvoluta
* †Mikadotrochus
* †Milda
* †Millepes
* †Millosevichia
* †Minolia
* †Minutiscala
* †Mioawateria
* †Miocenebra
* †Miofractarmilla
* †Miolyncina
* †Miomelon
* †Miopila
* †Miopleiona
* †Mirachelus
* †Miraclathurella
* †Miralda
* †Mirascapha
* †Mirlolaminatus
* †Mirochiliticus
* †Mirua
* †Mirula
* †Misteia
* †Mistostigma
* Mitra
* †Mitraria
* †Mitratoma
* Mitrella
* †Mitrelloturris
* †Mitreola
* †Mitridomus
* †Mitrithara
* †Mitrodrillia
* †Mitrolumna
* Mitromorpha
* †Mnestia
* †Mnestocylichnella
* †Modelia
* †Modestospira
* Modulus
* †Moelleria
* †Moerckeia
* †Molopophorus
* †Monalaria
* †Monetaria
* †Monilea
* †Moniliopsis
* †Moniliriretusa
* †Monocirsus
* †Monocuphus
* †Monodentella
* †Monodilepas
* Monodonta
* †Monoplex
* †Monopophorus
* †Monoptygma
* †Montfortia
* †Montfortula
* †Montia
* †Montospira
* †Morania
* †Morchiella
* †Morea
* †Morgania
* †Morionella
* †Mormula
* †Morphotropis
* Morula
* Morum
* †Morunella
* †Motyris
* †Mourlonia
* †Mourlonopsis
* †Mrhilaia
* †Muconalia
* †Multifarites
* †Multiptyxis
* Munditia
* †Munditiella
* †Murchisonella
* †Murchisonia (Gastropod)
* †Muregina
* Murex
* Murexiella
* †Murexsul
* Muricanthus
* †Muricassis
* Muricopsis
* †Muricotrochus
* †Murotriton
* †Murphitys
* †Musashia
* †Myagrostoma
* †Myobarbum
* †Myristica
* †Myurella
* †Myurellina

## N

* †Nacca
* Nacella
* †Nairiella
* †Nanggulania
* †Nannamoria
* †Nannodiella
* †Nannopyrgula
* †Nannubasa
* †Napulus
* †Naquetia
* †Naricava
* †Naricopsina
* †Narona
* †Nassa
* †Nassaria
* †Nassarina
* Nassarius
* †Nassicola
* †Natella
* †Natica
* †Naticarius
* †Naticonema
* †Naticopsis
* †Natiria
* †Natitaria
* †Nawenia
* †Neamphitomaria
* †Nebularia
* †Neilsonia
* †Nekewis
* †Nematrochus
* †Nemrac
* †Neoathleta
* †Neobernaya
* †Neocola
* †Neocylindrites
* †Neocylindrus
* †Neoguraleus
* †Neoimbricaria
* †Neojanacus
* †Neolatirus
* †Neonerinea
* †Neoplatytaichum
* †Neopleurofusia
* †Neoptyxis
* †Neosimnia
* †Neotrochaetaeon
* †Neozeba
* †Nepotilla
* †Neptunea
* †Nereina
* †Neridomus
* †Nerinatica
* †Nerinea
* †Nerinella
* †Nerineopsis
* †Nerineoptyxis
* †Nerinoides
* †Nerita
* †Neritaria
* Neritina
* †Neritoma
* †Neritoplica
* †Neritopsis
* †Neritoptyx
* †Neritrema
* †Nevadaspira
* †Neverita
* †Nicema
* †Nicolia
* †Nicosiaella
* †Nigerapana
* †Nigerithium
* †Nihonia
* †Nina
* †Ninella
* †Niotha
* †Nipponitys
* †Nipteraxis
* †Nisaclis
* †Nisiturris
* †Niso
* †Nisostomia
* †Nitidella
* †Nitidiscala
* †Niveria
* †Nodilittorina
* Nodiscala
* †Nodisurculina
* †Noditerebra
* †Nododelphinula
* †Nodonema
* †Nodospira
* †Nodulus
* †Noetca
* †Nonacteonina
* †Nordospira
* †Norrisella
* †Norrisia
* †Northia
* †Notacirsa
* †Notadusta
* Notoacmea
* Notocrater
* †Notocypraea
* †Notocytharella
* †Notogenota
* †Notohaliotis
* †Notoluponia
* †Notomella
* †Notopeplum
* †Notoplejona
* †Notoscrobs
* †Notoseila
* †Notosetia
* †Notosinister
* †Nototrivia
* †Notovoluta
* †Nozeba
* Nucella
* †Nuclearia
* †Nucleopsis
* †Nudangarita
* †Nudivagus
* †Nummocalcar
* †Nummotectus

## O

* †Oamaruia
* †Obex
* †Obexomia
* †Obornella
* Obtortio
* †Obtusella
* Ocenebra
* †Ochetochilus
* †Ochetoclava
* †Ocinebrellus
* †Ocinebrina
* †Odetta
* †Odoardia
* †Odontobasis
* †Odontofusus
* †Odontomaria
* †Odontopolys
* †Odontopurpura
* †Odontoturbo
* †Odostomella
* Odostomia
* †Odostomidea
* †Oehlertia
* Oenopota
* †Offleya
* †Offlyeotrochus
* †Ogivia
* †Okinawavoluta
* †Olequahia
* †Oligoptycha
* †Oligoptyxis
* Oliva
* †Olivancillaria
* Olivella
* †Olivia
* †Olivula
* †Olssonella
* †Omalaxis
* Omalogyra
* †Omanimaria
* †Omogymna
* †Omospira
* †Omphalius
* †Omphalonema
* †Omphaloptycha
* †Omphalotrochus
* Omphalotropis
* †Oncochilus
* †Ongleya
* †Oniscidia
* †Onkospira
* †Onoba
* Oocorys
* †Ooliticia
* †Oonia
* †Oostrombus
* †Ootomaria
* †Ootomella
* Opalia
* †Opaliopsis
* †Opella
* †Ophileta
* †Ophiletina
* Ophiodermella
* †Opimilda
* †Opisthonema
* †Optoturris
* Orbitestella
* †Orecopia
* †Orectospira
* †Orinella
* †Ormastralium
* †Ornamentaria
* †Ornatoptygmatis
* †Ornatospira
* †Ornopsis
* †Orospira
* †Orthaulax
* †Orthochetus
* †Orthochilus
* †Orthonema
* †Orthonychia
* †Orthoptyxis
* †Orthostomia
* †Orthosurcula
* †Osilinus
* †Ossiania
* †Ostioma
* †Otatara
* †Otollonia
* †Otomphalus
* †Otopleura
* †Otostoma
* †Ottoino
* Otukaia
* †Ovactaeonina
* †Ovatipsa
* †Ovilia
* †Ovinotis
* †Ovirissoa
* †Ovulactaeon
* †Ovulopsis
* †Owenella
* †Oxyacrum
* †Oxycypraea
* †Oxygyrus
* †Oxymeris
* †Oxyspira
* †Oxystele
* †Ozarkina
* †Ozarkispira
* †Ozodochilus

## P

* †Pachycrommium
* †Pachycymbiola
* †Pachycythara
* †Pachydontella
* Pachymelon
* †Pachyomphalus
* †Pachyrissoina
* †Pachystrophia
* †Pachysyrnola
* †Pagodea
* †Pagodina
* †Pagodospira
* †Pagodula
* †Pakistania
* †Paladmete
* †Palaeatractus
* †Palaeocancellaria
* †Palaeocollonia
* †Palaeocypraea
* †Palaeohydatina
* †Palaeoloxotoma
* †Palaeonarica
* †Palaeonisco
* †Palaeopsephaea
* †Palaeorhaphis
* †Palaeoschisma
* †Palaeoscurria
* †Palaeostylus
* †Palaeotrochactaeon
* †Palaeotrochus
* †Palaeozygopleura
* †Palangaria
* †Paleoalvania
* †Paleofusimitra
* †Paleunema
* †Paleuphemites
* †Pallacera
* †Palliocypraea
* †Palliseria
* †Palmadusta
* †Palomelon
* †Panamurex
* †Pangoa
* †Panormella
* †Papillina
* †Paraborsonia
* †Paracerithium
* †Paracirculus
* †Paraclathurella
* †Paracomitas
* †Paracomminia
* †Paradrilla
* †Parafusus
* †Paraglauconia
* †Paragoniozona
* †Paraliospira
* †Paramarshallena
* Parametaria
* †Paramorea
* †Paranassa
* †Paraneistrolepis
* †Parangarenga
* †Parangularia
* †Paraplatyschisma
* †Parapuractaeon
* †Pararaphispira
* †Paraseraphs
* †Parasimplotyxis
* †Parasyngenochilus
* †Parasyrinx
* †Parataphrus
* †Paraterebra
* †Paratrophon
* †Paraturbo
* †Paraviviana
* †Parazebinella
* †Pareora
* †Pareuchelus
* †Pareuryalox
* †Parietiplicatum
* †Parinotus
* †Paronaella
* †Parthenina
* †Partubiola
* †Partulida
* †Parvacmea
* †Parvimitra
* †Parvirota
* †Parviscala
* †Parvisetia
* †Parvisipho
* †Parviviana
* †Parvivoluta
* †Pasitheola
* Patella
* †Patellastra
* †Patellilabia
* Patelloida
* †Patellopsis
* †Patellostium
* †Patuxentrophon
* †Paulonaria
* †Pavora
* †Paxula
* †Payradeautia
* †Paziella
* †Pchelincevella
* †Peasiella
* †Pectinodonta
* †Peculator
* †Pedasiola
* Pedicularia
* Pedipes
* †Peelerophon
* †Pegocomptus
* †Pelicaria
* †Pellasimnia
* †Pellax
* †Penion
* †Pentagonodiscus
* †Pentaptyxis
* †Peonza
* †Pepta
* †Peracle
* †Pereiraea
* †Periaulax
* †Pericarinata
* †Peridipsaccus
* †Peringiella
* †Perissitys
* †Perissodonta
* †Perissolax
* †Perissoptera
* †Peristernia
* †Peritrophon
* †Pernericirrus
* †Perneritrochus
* †Perotrochus
* †Perplicaria
* †Perrinia
* †Perrona
* †Perse
* Persicula
* †Personella
* †Personopsis
* †Perucerithium
* †Peruchilus
* †Peruficus
* †Perulithes
* †Peruluta
* †Peruniscus
* †Perustrombus
* †Peruviella
* †Peruvispira
* †Pervicacia
* Petaloconchus
* †Petersia
* †Petrafixia
* †Petropoma
* †Peyrotia
* †Pezantia
* Phalium
* †Phandella
* †Phanerolepida
* †Phaneroptyxis
* †Phanerotinus
* †Phanerotrema
* †Pharetrolites
* †Pharkidonotus
* Phasianella
* †Phasianema
* †Phasianochilus
* †Phasianotrochus
* †Phenacovolva
* Phenatoma
* Philine
* †Philippia
* †Philoxene
* †Pholidotoma
* †Phoracanthus
* †Phorculus
* †Phorcus
* Phos
* †Phosinella
* †Phragmolites
* †Phragmosphaera
* †Phrontis
* †Phryx
* †Phyllocheilus
* †Phyllonotus
* †Phymatopleura
* †Pictavia
* †Pictiformes
* †Pictoscala
* †Piestochilus
* †Pietteia
* †Pileolus
* †Pinquigemmula
* †Pirena
* †Pirenella
* †Pirgos
* †Pirper
* †Pirsila
* †Pisanella
* Pisania
* †Pisanianura
* †Pisinna
* †Pisulina
* †Pithodea
* †Pittella
* †Plagiothyra
* Planaxis
* †Planicollonia
* †Planitrochus
* †Planolateralus
* †Planospirina
* †Planotectus
* †Planozone
* †Planpyrgiscus
* †Platyacra
* †Platybassis
* †Platyceras
* †Platychilina
* †Platyconcha
* †Platyconus
* †Platycythara
* Platyla
* †Platyloron
* †Platyoptera
* †Platyschisma
* †Platyteichum
* †Platyworthenia
* †Platyzona
* †Plectocion
* †Plectonotoides
* †Plectonotus
* †Pleia
* †Pleioptygma
* †Plentaria
* †Plesioacirsa
* †Plesiocerithium
* †Plesioptygmatis
* †Plesiothyreus
* †Plesiotriton
* †Plesiotrochus
* †Plethospira
* †Pleuracme
* †Pleuratella
* †Pleurofusia
* †Pleurolimnaea
* †Pleuroliria
* †Pleuromphalus
* †Pleuronotus
* Pleuroploca
* †Pleuropyramis
* †Pleurorima
* Pleurotomaria
* †Pleurotomella
* †Pleurotomoides
* †Plicafoliosa
* †Plicarcularia
* †Plicifusus
* †Pliciscala
* †Plicobulla
* †Pliconacca
* †Plocezyga
* †Plochelaea
* †Ploconema
* †Plocostoma
* †Plocostylus
* †Plotophysops
* Poirieria
* †Poleumita
* †Polinella
* Polinices
* †Poliniciella
* Pollia
* †Polygyreulima
* †Polygyrina
* †Polystira
* †Polytremaria
* †Pomahakia
* Pomaulax
* †Ponderia
* †Ponocyclus
* †Popenella
* †Popenoeum
* †Porcellia
* †Pornosis
* †Poropteron
* †Portlockiella
* †Portoricia
* †Postalia
* †Potamides
* †Potamidopsis
* †Powellisetia
* †Praehyalocylis
* †Praelittorina
* †Praematuratropis
* †Praenatica
* †Praestomatia
* †Preangeria
* †Prestrombus
* †Priene
* Primovula
* †Prionovolva
* †Priotrochus
* †Priscaphander
* †Priscoficus
* †Priscofusus
* †Prisogaster
* †Pristimerica
* †Pristinacca
* †Proacirsa
* †Proadusta
* †Procalpurnus
* †Procampanile
* †Procancellaria
* †Procerapex
* †Procerithiopsis
* †Procerithium
* †Proclava
* †Procominula
* †Proconulus
* †Prodiozoptyxis
* †Proficus
* †Profundialvania
* †Progabbia
* †Promartynia
* †Promathilda
* †Promourlonia
* †Propemurchisonia
* Propilidium
* †Propustularia
* †Proscala
* †Proscutum
* †Prosimnia
* †Prosipho
* †Prosolarium
* †Prosoptychus
* †Prosthenodon
* †Proterato
* †Protoatlanta
* †Protobarleeia
* †Protobusycon
* †Protocalyptaea
* †Protocypraea
* †Protocypraedia
* †Protodolium
* †Protofusus
* †Protoma
* †Protonema
* †Protopirula
* †Protorcula
* †Protorotella
* †Protospirialis
* †Protostylifera
* †Protostylus
* †Protosurcula
* †Prototurbo
* †Prototyphis
* †Protuba
* †Proturboella
* †Proturritella
* †Provermicularia
* †Proxicharonia
* †Proximitra
* †Proxiuber
* Prunum
* †Psammodulus
* †Psephaea
* †Pseudalaria
* †Pseudamaura
* †Pseudaulicina
* †Pseudavena
* †Pseudoaclisina
* †Pseudoaluco
* †Pseudoaptyxis
* †Pseudobaylea
* †Pseudobrochidium
* †Pseudobuccinum
* †Pseudocancilla
* †Pseudocassis
* †Pseudochrysalis
* †Pseudocirsope
* †Pseudoclanculus
* †Pseudocominella
* †Pseudocryptaenia
* †Pseudocymia
* †Pseudodiartema
* †Pseudodiloma
* †Pseudofax
* †Pseudofissurella
* †Pseudofulgur
* †Pseudofusia
* †Pseudogaleodea
* †Pseudoglauconia
* †Pseudohercynella
* †Pseudolacuna
* †Pseudolatirus
* †Pseudoliomesus
* †Pseudoliotina
* †Pseudoliva
* †Pseudolyria
* †Pseudomalaxis
* †Pseudomelania
* †Pseudomelatoma
* †Pseudomesalia
* †Pseudometula
* †Pseudomorea
* †Pseudompalotrochus
* †Pseudomurchisonia
* †Pseudoneptunea
* †Pseudonerinea
* †Pseudonina
* †Pseudoninella
* †Pseudoperissitys
* †Pseudoperissolax
* †Pseudophasianus
* †Pseudophorus
* †Pseudopisania
* †Pseudoplatyceras
* †Pseudoplocezyga
* †Pseudorapa
* †Pseudoraphitoma
* †Pseudorhytidopilus
* †Pseudorotella
* †Pseudoscalites
* †Pseudoscalites
* †Pseudoschizogonium
* †Pseudosetia
* †Pseudostomatella
* †Pseudotaphrus
* †Pseudotectus
* †Pseudotoma
* †Pseudotorinia
* †Pseudotritonium
* †Pseudotrivia
* †Pseudotruncatella
* †Pseudotubina
* †Pseudotylostoma
* †Pseudovaricia
* †Pseudovertagus
* †Pseudowarthia
* †Pseudozonaria
* †Pseudozygopleura
* †Psilarius
* †Psilaxis
* †Psilocochlis
* †Ptereulima
* †Pterocera
* †Pterocerella
* †Pterocheilos
* †Pterochelus
* †Pterodonta
* †Pterodonticeras
* †Pterolabrella
* Pteropurpura
* †Pterorytis
* †Pterospira
* †Pterotheca
* Pterotrachea
* Pterotyphis
* †Pterygia
* Pterynotus
* †Ptomatis
* †Ptychatractus
* †Ptycheulimella
* †Ptychobellerophon
* †Ptychocaulus
* †Ptychocerithium
* †Ptychocylindrites
* †Ptychogyra
* †Ptychomphalina
* †Ptychomphalus
* †Ptychopotamides
* †Ptychoris
* †Ptychosalpinx
* †Ptychosphaera
* †Ptychospirina
* †Ptychostoma
* †Ptychosyca
* †Ptychosyrinx
* †Ptychozone
* †Ptygmatis
* Pugilina
* †Pugnellus
* †Puha
* †Pulchrastele
* †Pulchritima
* Punctiscala
* †Punctospira
* Puncturella
* †Puncturellopsis
* †Punjabia
* †Pupa
* †Pupatonia
* Puperita
* †Pupillaea
* †Pupillaria
* †Puposyrnola
* Purpura
* †Purpuradusta
* †Purpurellus
* †Purpurina
* †Purpuroidea
* †Puruiana
* †Puruninella
* Pusia
* †Pusillina
* †Pusiolina
* †Pusionella
* Pustularia
* †Pustulifer
* Pusulla
* †Putilla
* †Putzeysia
* †Pycnomphalus
* †Pycnotrochus
* †Pyktes
* Pyramidella
* †Pyramidelloides
* †Pyramimitra
* †Pyramistomia
* †Pyramitoma
* †Pyrazella
* †Pyrazisinus
* †Pyrazus
* Pyrene
* †Pyrenomitra
* †Pyrenoturris
* †Pyrgiscilla
* Pyrgiscus
* Pyrgocythara
* †Pyrgolampros
* †Pyrgolidium
* †Pyrgotrochus
* †Pyrgulina
* †Pyrifusus
* †Pyropsis
* †Pyruclia
* †Pyrulofusus
* †Pyrunculus
* †Pythmenema
* †Pyxipoma

## Q

* †Quadricarina
* †Quadrinervus
* †Quassisipho
* †Quimalea
* †Quoyia

## R

* †Rabicea
* †Radinista
* †Raha
* †Raincourtia
* †Ramina
* Ranella
* †Ranellina
* †Rangimata
* †Ranularia
* Rapana
* †Raphischisma
* †Raphispira
* †Raphistoma
* †Raphistomina
* †Raphitoma
* †Rapopsis
* †Ratifusus
* †Raulinia
* †Ravitrona
* †Ravnostomia
* †Rectiplanes
* †Recurvina
* †Redocla
* †Remera
* †Remnita
* Renea
* †Reticulacella
* †Reticuloturris
* †Retiopustula
* †Retipirula
* †Retispira
* †Retizafra
* Retusa
* †Reymentella
* †Rhabdocolpus
* †Rhabdoconcha
* †Rhabdotocochlis
* †Rhaphischisma
* †Rhaphistomella
* Rhinoclavus
* †Rhinoderma
* †Rhizorus
* †Rhombella
* †Rhomboidestoma
* †Rhombopsis
* †Rhombostoma
* †Rhopalites
* †Rhynchocerithium
* †Rhynchocypraea
* †Rhytidopilus
* †Ricinella
* Rictaxis
* †Rigauxia
* †Rimella
* †Rimosodaphnella
* Rimula
* †Rimulopsis
* †Rinaldoconchus
* †Rinaldomphalus
* Ringicula
* †Ringiculella
* †Ringiculina
* †Ringiculocosta
* †Ringiculopsis
* †Ringiculoptycha
* †Ringiculospongia
* †Ringinella
* †Ripleyella
* †Risella
* †Risellopsis
* †Risselloidea
* Rissoa
* †Rissocerithium
* Rissoina
* †Rissolina
* †Rissomangelia
* †Rissopsetia
* †Ritena
* †Riuguhdrillia
* †Robus
* †Rochia
* †Rolandomphalus
* †Rollandiana
* Roperia
* †Rossiteria
* †Rostellaca
* †Rostellana
* †Rostellaria
* †Rostellinda
* †Rostreulima
* †Rostrocerithium
* †Rotadiscoides
* †Rothpeltzia
* †Rothpletzella
* †Rousseauspira
* †Roxania
* †Roxaniella
* Roya
* †Ruedemannia
* †Rufilla
* †Rugatiscala
* †Rugiferia
* †Rugobela
* †Rugotyphis
* †Rugulina
* †Rumerloella

## S

* †Sabatia
* †Sabaziella
* †Sabia
* †Sabinella
* †Sablea
* †Sabrinella
* †Saccaroturris
* †Saccoina
* †Sagenella
* †Sallya
* †Salpingostoma
* †Salterospira
* †Sandbergeria
* †Sanhaliotis
* †Santia
* †Sargana
* †Sarmates
* †Sarmaticus
* †Sarmaturbo
* †Sassia
* †Scabrella
* †Scabricola
* †Scaevola
* †Scalaetrochus
* Scalaria
* †Scalaronoba
* †Scalaspira
* †Scalenostoma
* †Scalina
* †Scaliola
* †Scalites
* †Scalitina
* †Scalituba
* †Scalptia
* Scaphander
* Scaphella
* †Scaphellopsis
* †Sceptrum
* †Schilderia
* †Schizobasis
* †Schizogonium
* †Schizolopha
* †Schizopea
* Schwartziella
* Scissurella
* Scissurona
* †Scobinella
* †Scobinodola
* †Scoliostoma
* Sconsia
* †Scorbinidola
* †Scrinium
* †Scrobs
* †Scrupus
* †Sculpturea
* †Scurriopsis
* †Scutellastra
* Scutus
* †Searlesia
* †Sediliopsis
* †Seelya
* †Seguenzia
* Seila
* †Seisa
* †Sellinema
* †Semahana
* †Semiactaeon
* †Semibittium
* Semicassis
* †Semicypraea
* †Semineritina
* †Seminola
* †Semipirum
* †Semisolarium
* †Semistylifer
* †Semiterebellum
* †Semitriton
* †Semitrivia
* †Semitubina
* †Semityphis
* †Semivertagus
* †Semperia
* †Sentularia
* Septa
* †Sequania
* †Seraphs
* †Serpentubina
* Serpulorbis
* †Serpulospira
* †Serrata
* †Serratifusus
* †Serratocerithium
* †Serratotrochus
* †Serrifusus
* †Settsassia
* †Sevanella
* †Seymourosphaera
* †Shansiella
* †Shikamacirrus
* †Shikokuspira
* †Shwedagonia
* Sigapatella
* †Sigaretopsis
* †Sigaretotrema
* Sigatica
* †Sigmesalia
* Siliquaria
* †Siluracmaea
* †Siluriphorus
* Simnia
* †Sinaxila
* †Sincola
* Sinezona
* †Singulitubus
* †Sinistrella
* †Sinistrospira
* †Sinorificium
* †Sinospira
* †Sinuella
* †Sinuina
* †Sinuites
* †Sinuitina
* Sinum
* †Sinuopea
* †Sinuozyga
* †Sinuspira
* †Sinustomia
* †Sinutropis
* †Sinzowia
* †Sipho
* †Siphocypraea
* †Siphonacmea
* Siphonalia
* Siphonaria
* †Siphonochelus
* †Siphonophyla
* †Siphonorbis
* †Siphopatella
* †Siratus
* †Sirius
* †Sisenna
* †Siskyouspira
* †Skaptotion
* †Skena
* Smaragdia
* †Smithiellia
* †Socotora
* †Sogdianella
* †Sohlella
* †Sohlia
* †Sohlitella
* †Solariaxis
* Solariella
* †Solarioconulus
* †Solariorbis
* †Solarium
* †Solatia
* †Soleniscus
* †Solenosteira
* †Sollariaxis
* †Solutofusus
* †Sorapisella
* †Sororcula
* †Sosiolytes
* †Spanionema
* †Sparella
* Spectamen
* Specula
* †Speightia
* †Spelaenacca
* †Sphaerocina
* †Sphaerocypraea
* †Sphaeronassa
* †Sphenosphaera
* †Spinaspira
* †Spineoterebra
* †Spinicharybdis
* †Spinigera
* †Spiniscala
* †Spinomelon
* †Spinulrichospira
* †Spiractaeon
* †Spiraculinella
* †Spiradaphne
* †Spiralta
* †Spirgvaleia
* †Spirina
* †Spirochrysalis
* †Spirocirrus
* †Spirocolpus
* †Spirocrypta
* †Spirocyclina
* †Spirocyclus
* †Spirodentalium
* †Spiroecus
* †Spirogalerus
* †Spiroglyphus
* Spirolaxis
* †Spiromphalus
* †Spironema
* †Spironemella
* †Spiroscala
* †Spirostylus
* †Spirotomaria
* †Spirotropis
* Splendrillia
* †Spoelia
* †Squamalinia
* †Squarrosus
* †Stachella
* †Staffinia
* †Stantonella
* †Staphylaea
* †Stazzania
* †Stegocoelia
* Stellaria
* †Stellaxis
* †Stelzneria
* †Stenoloron
* Stenorhytis
* †Stenotis [nl]
* †Stenozone
* †Stephanoconus
* †Stephanocosmia
* †Stephanosalpinx
* †Stephanozyga
* †Stereokion
* †Steromphala
* Sthenorytis
* Stigmaulax
* Stilifer
* †Stilla
* †Stiracolpus
* Stomatella
* †Stomatia
* †Stosicia
* Stramonita
* †Strangulites
* †Straparella
* †Straparollina
* †Straparollus
* †Strebloceras
* †Strephona
* †Strephonella
* †Strepsidura
* †Streptacis
* †Streptocarina
* †Streptochetus
* †Streptodictyon
* †Streptodiscus
* †Streptolathyrus
* †Streptopelma
* †Streptotrochus
* †Striactaeonina
* †Striatesta
* †Striaticostatum
* †Striatiscala
* †Strictohumerus
* †Strigatella
* †Strigillibuccinum
* †Strigosella
* †Striocarinata
* †Striodostomia
* †Strioterebrum
* †Strioturbonilla
* †Strobeus
* †Strombiformis
* Strombina
* †Strombinella
* †Strombinophos
* †Stromboconus
* †Strombolaria
* †Strombopugnellus
* Strombus
* †Strominella
* †Strongylocera
* †Strophostylus
* †Strotostoma
* †Struthiochenopus
* †Struthiolarella
* Struthiolaria
* †Struthiolariopsis
* †Struthioptera
* †Stuorella
* †Sturgeonospira
* †Stylidium
* †Styliola
* †Stylonema
* †Styloplocus
* †Suavodrillia
* †Subcancilla
* †Subclimax
* †Subditotectarius
* †Subninella
* †Subpterynotus
* †Subula
* †Subuliscala
* †Subulites
* †Suchium
* †Suessonia
* †Sulcoactaeon
* †Sulcocypraea
* †Sulcogladius
* †Sulconatica
* †Sulcoretusa
* †Sulcorinella
* †Sulcosipho
* †Sulcosubularia
* †Sulcotrivia
* †Sulcoturbonilla
* †Sulculus
* †Sundabittium
* †Superstes
* Supplanaxis
* †Suprazonalis
* †Surcula
* †Surculina
* †Surculites
* †Surculoma
* †Sveltella
* †Sveltia
* †Swainsonia
* †Sycodes
* †Sycopsis
* †Sycostoma
* †Sycotypus
* †Sydaphera
* †Sylvestrosphaera
* †Symmetrocapulus
* Synaptocochlea
* †Syncera
* †Syngenochelus
* †Syntomodrillia
* †Syrnola

## T

* †Tachyrhynchella
* †Tachyrhynchus
* †Taemasotrochus
* †Taeniaturbo
* †Taeniospira
* †Tahudrilla
* †Tahusyrinx
* †Taieria
* †Taioma
* †Taita
* †Takia
* †Talahabia
* †Talantodiscus
* †Talityphis
* Talopena
* †Talostolida
* Talparia
* †Tanaliopsis
* †Tanea
* †Taniella
* †Tanimasanoria
* †Tantunia
* †Taosia
* †Taphrostomia
* †Tapinotomaria
* †Taramellia
* †Taranis
* †Tarantinaea
* †Taron
* †Tatara
* †Tateiwaia
* †Taurasia
* †Tauricella
* †Tauschia
* †Taxonia
* †Tectaplica
* †Tectariopsis
* Tectarius
* †Tectifusus
* Tectonatica
* †Tectospira
* Tectura
* †Tectus
* Tegula
* †Teiichispira
* †Teilostoma
* Teinostoma
* †Teinostomopsis
* †Tejonia
* †Telasco
* †Teleochilus
* †Teleoptyxis
* Telescopium
* †Teliochilus
* †Telleria
* †Temanella
* †Tembrockia
* †Temnodiscus
* †Temnospira
* †Temnotropis
* Tenagodus
* Tenaturris
* †Teneposita
* †Tenuiactaeon
* †Tenuicerithium
* †Tenuiscala
* †Tephlon
* †Terebellopsis
* Terebellum
* Terebra
* Terebralia
* †Terebraliopsis
* †Terebrellina
* †Terebrifusus
* †Terebritoma
* †Terefundus
* †Terelimella
* †Teremelon
* †Teretia
* †Teretrina
* †Ternivoluta
* †Tessarolax
* Testudinalia
* †Tetranota
* †Tetraplica
* †Tetraptyxis
* †Tetratubispira
* Thais
* †Thaisella
* †Thala
* †Thalotia
* †Thanetinassa
* †Tharsiella
* Thatcheria
* †Thecopsella
* †Thelecythara
* †Theliostyla
* †Thericium
* †Thersitea
* †Thesbia
* †Thiarinella
* †Thierachella
* †Tholitoma
* †Thorista
* Thoristella
* †Threavia
* †Thylacus
* †Tianjinospira
* †Tiara
* †Tiaracerithium
* †Tiarellacerithium
* †Tiberia
* †Tibersyrnola
* †Tibia
* †Tibiaporrhais
* †Tibiella
* †Tiburnus
* †Timisia
* †Tintorium
* †Tioria
* †Tipua
* †Tmetonema
* †Toledonia
* †Tomellana
* †Tomopleura
* †Tomostoma
* †Tomyris
* Tonna
* †Torcula
* †Torculoidella
* †Torgnellus
* †Torinia
* †Tornatellaea
* Tornus
* †Torquatiscala
* †Torquesia
* †Torquesiella
* †Torquifer
* †Tortisipho
* †Tortoliva
* †Tournouerella
* †Touzinia
* †Toxoconcha
* †Trachelochetus
* †Trachoecus
* †Trachybembix
* †Trachydomia
* †Trachynerita
* Trachypollia
* †Trachysma
* †Trachyspira
* †Trachytriton
* †Tractoliria
* †Tragula
* †Trajana
* †Trajanella
* †Transmariaturris
* †Transovula
* †Transylvanella
* †Tremanotus
* †Trepospira
* †Tretospira
* †Triadoskenea
* †Trianglospira
* †Triangularia
* †Triaracerithium
* †Triassocirrus
* †Tribia
* †Trichosirius
* Trichotropis
* Tricolia
* †Tricornis
* †Tridactylus
* †Triforis
* †Trigonostoma
* †Trimalaxis
* Trimusculus
* Triphora
* †Tripia
* †Tripidotomaria
* †Triploca
* †Tripterotyphis
* Triptychus
* †Tristichotrochus
* †Tritiaria
* Tritonalia
* †Tritonatractus
* †Tritonomangilia
* †Tritonophon
* †Tritonopsis
* †Trituba
* †Triumphis
* Trivia
* †Triviella
* †Trivirostra
* †Trobus
* †Trochacanthus
* †Trochactaeon
* †Trochactaeonina
* †Trochalia
* †Trochita
* †Trochocerithium
* †Trochodon
* †Trochomphalus
* †Trochonema
* †Trochonemella
* †Trochonemopsis
* †Trochonerita
* †Trochopsidea
* †Trochotectus
* †Trochotoma
* †Trochotomaria
* †Trochotrochus
* †Trochotugurium
* †Trochoturbella
* Trochus
* †Trominina
* Trona
* †Troostella
* †Tropaeas
* Trophon
* †Trophonopsis
* †Trophosycon
* †Tropicolpus
* †Tropidodiscus
* Tropidophora
* †Tropidostropha
* †Tropisurcula
* †Trubosta
* †Truncaria
* †Trunculariopsis
* †Tryonella
* †Trypanaxis
* †Trypanocochlea
* †Trypanostylus
* †Trypanotoma
* †Trypanotopsis
* †Trypanotrochus
* †Tubena
* †Tuberleviathana
* †Tubicauda
* †Tubina
* †Tubiola
* †Tubomphalus
* †Tudicla
* †Tudiclana
* †Tudicula
* †Tudorella
* †Tugali
* †Tugurium
* †Tulochilus
* †Tumidiacirsa
* Tumulus (subfamily of Gibbula)
* †Tundora
* †Turbinea
* Turbinella
* †Turbinilopsis
* †Turbinopsis
* Turbo
* †Turbocheilus
* †Turboella
* †Turboidea
* †Turbonellina
* Turbonilla
* †Turbonitella
* †Turbonomaria
* †Turbonopsis
* Turcica
* †Turehua
* †Turriclavis
* †Turricolumbus
* †Turricula
* †Turriculina
* †Turrifulger
* †Turrina
* †Turrinosyrinx
* †Turriola
* Turris
* †Turriscala
* Turritella
* †Turritellopsis
* †Turritoma
* †Turritriton
* †Tychobrachea
* †Tychonia
* †Tylocassis
* Tylochilus
* †Tylodinella
* †Tylospira
* †Tylostoma
* †Tylotrochus
* †Tylozone
* †Tympanotonos
* †Typhina
* †Typhinellus
* Typhis
* †Typhlomangelia
* †Tyrannoberingius
* †Tyrsoecus

## U

* †Uberella
* †Uchauxia
* †Ulfa
* †Ulrichospira
* †Umbilia
* †Umbonellina
* Umbonium
* †Umbospira
* †Umbotrochus
* †Umbotropis
* Umbraculum
* †Umpquaia
* †Undiscala
* †Undulabucania
* †Undularia
* †Unedogemmula
* †Unicarinata
* Unitas
* †Upella
* †Urceolabrum
* †Urgonella
* †Urkutitoma
* †Uromitra
* Urosalpinx
* †Uttleya
* †Uvanilla
* †Uxia
* †Uzita

## V

* †Vaderos
* †Vaginella
* †Valanginella
* †Valfinia
* Vanikoro
* †Vanikoropsis
* †Vanitrochus
* †Vanpalmer
* †Varicobela
* †Varicosipho
* †Varicospira
* †Varpalmeria
* Vasum
* †Vaughanites
* †Veatchia
* †Velainella
* †Velatella
* †Velates
* Velutina
* †Ventricaria
* †Ventrilia
* †Vergnesia
* Vermetus
* Vermicularia
* †Vernedia
* †Vernelia
* †Verruturris
* †Vesanula
* †Vestulia
* †Veterator
* †Vetridrillia
* †Vexillitra
* Vexillum
* †Vexinia
* †Vexithara
* †Vicarya
* †Vicaryella
* †Vicetia
* †Vicinocerithium
* †Vigescentis
* †Vincenturris
* †Virgella
* †Viridibuccinum
* †Viriola
* †Visitator
* †Vistulia
* Vitrinella
* †Vitrinellops
* †Vitta
* †Vitularia
* †Vivanella
* †Volema
* Voluspa (subspecies of Pyramidella)
* Voluta
* †Volutilithes
* †Volutoconus
* †Volutocorbis
* †Volutoderma
* †Volutolithes
* Volutomitra
* †Volutomorpha
* †Volutopsius
* †Volutospina
* Volva
* †Volvaria
* †Volvariella
* Volvarina
* †Volvarinella
* †Volvocylindrites
* Volvulella
* †Voorwindia
* †Vorticina
* †Vouastia

## W

* †Waihaoia
* †Waikura
* †Waimatea
* †Waipaoa
* †Waisiolia
* †Waitara
* †Walnichollsia
* †Waluia
* †Wangacteon
* †Wangaloa
* †Warthia
* †Wateletia
* †Watsonia (subgenus of Parastrophia)
* †Weeksia
* †Wellergyi
* †Wendella
* †Westerna
* †Wexfordia
* †Whitecliffia
* †Whitneya
* †Whitneyella
* Williamia
* †Willungia
* †Wilsoniconcha
* †Wisonsinella
* †Woehrmannia
* †Woodsalia
* †Woodsella
* †Worthenia
* †Wortheniella
* †Wortheniopsis
* †Wyatella

## X

* Xancus
* †Xanthochorus
* †Xenogalea
* †Xenophalium
* Xenophora
* Xenotrophon
* †Xenuroturris
* †Xestosurcula
* †Xizangospira
* †Xuwenospira
* †Xymene
* †Xymenella
* †Xystrella

## Y

* †Yasila
* †Yingicus
* †Yochelsonospira
* †Yunnania

## Z

* †Zaclys
* Zafra
* †Zalipais
* †Zalozone
* †Zanassarina
* †Zaphon
* †Zardinistylus
* †Zardubinihelix
* Zaria (subgenus of Turritella)
* Zeacolpus
* †Zeacrypta
* †Zeacumanthus
* †Zeacuminia
* †Zeadmete
* †Zeapollia
* Zebina
* †Zebittium
* †Zefallacia
* †Zegalerus
* †Zeidora
* †Zekilla
* †Zelandiella
* †Zemacies
* †Zemira
* †Zemitrella
* †Zenbinostoma
* †Zenepos
* †-Zephos (synonym of Cominella)
* †Zeradina
* †Zethalia
* †Zeuxis
* †Zikkuratia
* †Zinolia
* †Zinsitys
* †Zircia
* †Zittelia
* †Ziziphinus
* †Zoila
* Zonaria
* †Zonarina
* †Zosterospira
* †Zygites
* †Zygopleura