This is a list of fossil genera of foraminiferans.

A

Abadehella

Abathomphalus

Abditodentrix

Abdullaevia

Abrardia

Abyssamina

Acarinina

Accordiella

Acervoschwagerina

Acervulina

Aciculella

Acostina

Acruliammina

Actinocyclina

Actinosiphon

Adelosina

Adelungia

Adercotryma

Adhaerentia

Adraheutina

Aeolisaccus

Aeolostreptis

Affinetrina

Afghanella

Afrobolivina

Agathammina

Agathamminoides

Agglutinella

Agglutisolena

Akiyoshiella

Aktinorbitoides

Alabamina

Alabaminoides

Aleomorphella

Alfredina

Alliatina

Alliatinella

Allomorphina

Allomorphinella

Almaena

Alpillina

Alpinophragmium

Altasterella

Altinerina

Altistoma

Alveocyclammina

Alveolina

Alveolinella

Alveolophragmium

Alveosepta

Alveovalvulina

Alzonella

Ambitropus

Amijiella

Ammoastuta

Ammobacularia

Ammobaculites

Ammobaculoides

Ammocycloculina

Ammodiscella

Ammodiscoides

Ammodiscus

Ammoelphidiella

Ammoglobigerina

Ammogloborotalia

Ammolagena

Ammomarginulina

Ammonia

Ammopalmula

Ammoscalaria

Ammosiphonia

Ammosphaeroidina

Ammospirata

Ammotium

Ammotrochoides

Ammovertella

Ammovertellina

Ammovolummina

Amphicervicis

Amphicoryna

Amphimorphina

Amphisorus

Amphistegina

Amphitremoida

Amphoratheca

Amplectoproductina

Anaticinella

Anchispirocyclina

Andamookia

Andersenia

Andersenolina

Andrejella

Androsina

Angotia

Angulodiscus

Angulogavelinella

Angulogerina

Anictosphaera

Annectina

Annulocibicides

Annulofrondicularia

Annulopatellina

Anomalinella

Anomalinoides

Antalyna

Antarcticella

Apertauroria

Apterrinella

Aragonella

Aragonia

Arakaevella

Archaealveolina

Archaecyclus

Archaediscus

Archaeglobigerina

Archaeochintinia

Archaeochitosa

Archaeosepta

Archaesphaera

Archaias

Archiacina

Arenagula

Areniconulus

Arenobulimina

Arenodosaria

Arenogaudryina

Arenonionella

Arenoparrella

Arenosiphon

Arenoturrispirillina

Arenovidalina

Armenina

Arnaudiella

Articularia

Articulina

Asanoina

Asanonella

Asanospira

Aschemocella

Ascoliella

Asselodiscus

Assilina

Astacolus

Asterigerina

Asterigerinata

Asterigerinella

Asterigerinoides

Asteroammonia

Asteroarchaediscus

Asterocyclina

Asterohedbergella

Asterolepidina

Asterophragmina

Asterorbis

Asterorotalia

Astrononion

Astrorhiza

Astrorotalia

Asymmetrina

Atactolituola

Ataxoorbignyna

Ataxophragmium

Atelikamara

Atwillina

Aubignyna

Audienusina

Auloconus

Aulotortus

Auroria

Austrocolomiá

Austrotrillina

Avesnella

Awhea

Axiopolina

Ayalaina

B

Babelispirillina

Baculogypsina

Baculogypsinoides

Baelenia

Baggatella

Baggina

Bagginoides

Baisalina

Baituganella

Balkhania

Bandyella

Banffella

Bannerella

Barbourinella

Barkerina

Barnardina

Bartramella

Bathysiphon

Bdelloidina

Beedeina

Beella

Belorussiella

Berggrenia

Bermudezella

Bermudezina

Bermudezinella

Berthelina

Berthelinella

Berthelinopsis

Biapertorbis

Biarritzina

Biasterigerina

Bibradya

Biconcava

Bifarilaminella

Bifarina

Bifarinella

Bifurcammina

Bigenerina

Biglobigerinella

Bilingulogavelinella

Biloculinella

Bimonilina

Biokovina

Biorbis

Biparietata

Biplanata

Biplanispira

Bireophax

Biseriammina

Biseriella

Bisphaera

Bispiranella

List of prehistoric foraminifera genera