List of brachiopod genera

Taxobox
name = Brachiopoda
fossil_range = Cambrian - Recent

---

image_width = 250px
image_caption = "Rhynchotella inconstans" lived some 155-150 million years ago (mya)
regnum = Animalia
phylum = Brachiopoda
phylum_authority = Duméril, 1806
subdivision_ranks = Genera
subdivision =About 4000, see text

This is a list of brachiopod genera. Genera include living and extinct ones. Extant genera are bolded.

Naming conventions and terminology

Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include:
* Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen.
*"Nomen nudum" (Latin for "naked name"): A name that has appeared in print but has not yet been formally published by the standards of the ICZN. "Nomina nuda" (the plural form) are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a "nomen nudum" and will be italicized on this list. Often, the formally published name will differ from any "nomina nuda" that describe the same specimen.
*"Nomen oblitum" (Latin for "forgotten name"): A name that has not been used in the scientific community for more than fifty years after its original proposal.
*Preoccupied name: A name that is formally published, but which has already been used for another taxon. This second use is invalid (as are all subsequent uses) and the name must be replaced.
*"Nomen dubium" (Latin for "dubious name"): A name describing a fossil with no unique diagnostic features. As this can be an extremely subjective and controversial designation, this term is not used on this list.

A

*"Aalenirhynchia"
*"Aberia"
*"Aboriginella"
*"Abrekia"
*"Absenticosta"
*"Abyssothyris"
*"Acambona"
*"Acanthalosia"
*"Acanthambonia"
*"Acanthatia"
*"Acanthocosta"
*"Acanthocrania"
*"Acanthoglypha"
*"Acanthoplecta"
*"Acanthoproductus"
*"Acanthorhynchia"
*"Acanthorthis"
*"Acanthospirifer"
*"Acanthospirina"
*"Acanthothyris"
*"Acanthothyropsis"
*"Acanthotoechia"
*"Acareorthis"
*"Acculina"
*"Achunoproductus"
*"Acidotocarena"
*"Acolosia"
*"Acosarina"
*"Acritosia"
*"Acrobrochus"
*"Acrospirifer"
*"Acrothele"
*"Acrothyra"
*"Acrothyris"
*"Acrotreta"
*"Acrotretella"
*"Actinoconchus"
*"Actinomena"
*"Acuminothyris"
*"Acutatheca"
*"Acutella"
*"Acutilineolus"
*"Acutoria"
*"Adairia"
*"Adaptatrypa"
*"Adectorhynchus"
*"Adenus"
*"Adiaphragma"
*"Adminiculoria"
*"Admixtella"
*"Admodorugosus"
*"Adnatida"
*"Adolfia"
*"Adolfispirifer"
*"Adrenia"
*"Advenina"
*"Adygella"
*"Adygelloides"
*"Adygellopsis"
*"Aegiria"
*"Aegironites"
*"Aemula"
*"Aenigmastricklandia"
*"Aenigmastrophia"
*"Aenigmathyris"
*"Aequispiriferina"
*"Aerithyris"
*"Aesopomum"
*"Aetheia"
*"Aethirhynchia"
*"Afghanospirifer"
*"Afilasma"
*"Agarhyncha"
*"Agastapleura"
*"Agelesia"
*"Agerinella"
*"Agramatia"
*"Agulhasia"
*"Agyrekia"
*"Ahtiella"
*"Aidynkulirhynchia"
*"Airtonia"
*"Ajukuzella"
*"Akatchania"
*"Akelina"
*"Akopovorhynchia"
*"Aktassia"
*"Ala"
*"Alabusherothyris"
*"Alaskospira"
*"Alatiformia"
*"Alatoproductus"
*"Alatorthotetina"
*"Aldaniopirifer"
*"Aldanotreta"
*"Aldingia"
*"Alekseevaella"
*"Alexenia"
*"Alichovia"
*"Aliconchidium"
*"Alimbella"
*"Alipunctifera"
*"Aliquantula"
*"Alisina"
*"Alispira"
*"Alispirifer"
*"Alispiriferella"
*"Alitaria"
*"Alithyris"
*"Allanella"
*"Allanetes"
*"Allorhynchoides"
*"Allorhynchus"
*"Almerarhynchia"
*"Almorhynchia"
*"Altaeorthis"
*"Altaestrophia"
*"Altaethyrella"
*"Altajella"
*"Altiplecus"
*"Altoplicatella"
*"Altunella"
*"Alvarezites"
*"Alwynia"
*"Ambardella"
*"Ambikella"
*"Ambocoelia"
*"Amboglossa"
*"Ambonorthella"
*"Ambothyris"
*"Amerista"
*"Amesopleura"
*"Ametoria"
*"Amictocracens"
*"Amissopecten"
*"Amoenirhynchia"
*"Amoenospirifer"
*"Amosina"
*"Amphiclina"
*"Amphiclinodonta"
*"Amphigenia"
*"Amphipella"
*"Amphiplecia"
*"Amphistrophia"
*"Amphistrophiella"
*"Amphitomella"
*"Amsdenella"
*"Amsdenina"
*"Amsdenostropiella"
*"Amurothyris"
*"Amydroptychus"
*"Amygdalocosta"
*"Anabaia"
*"Anabaria"
*"Anabolotreta"
*"Anadyrella"
*"Anakinetica"
*"Anaptychius"
*"Anarhynchia"
*"Anastrophia"
*"Anathyrella"
*"Anathyris"
*"Anatreta"
*"Anatrypa"
*"Anazyga"
*"Anchigonites"
*"Ancillotoechia"
*"Ancistrocrania"
*"Ancistrorhynchia"
*"Ancorellina"
*"Ancorhynchia"
*"Ancylostrophia"
*"Andalucinetes"
*"Andobolus"
*"Andreaspira"
*"Anechophragma"
*"Anelotreta"
*"Anemonaria"
*"Angarella"
*"Angiospirifer"
*"Angulotreta"
*"Angusticardinia"
*"Angustothyris"
*"Aniabrochus"
*"Anidanthus"
*"Animonithyris"
*"Anisactinella"
*"Anisopleurella"
*"Anomactinella"
*"Anomalesia"
*"Anomaloglossa"
*"Anomaloria"
*"Anomalorthis"
*"Anoplia"
*"Anopliopsis"
*"Anoplotheca"
*"Anoptambonites"
*"Ansehia"
*"Antelocoelia"
*"Anteridocus"
*"Antezeilleria"
*"Anthracospirifer"
*"Antigonambonites"
*"Antigoniarcula"
*"Antinomia"
*"Antiptychina"
*"Antiquatonia"
*"Antirhynchonella"
*"Antispirifer"
*"Antistrix"
*"Antistrixia"
*"Antizygospira"
*"Antronaria"
*"Anulatrypa"
*"Anx"
*"Aorhynchia"
*"Aparimarhynchia"
*"Apatecosia"
*"Apatobolus"
*"Apatomorpha"
*"Apatorthis"
*"Apatoskenidioides"
*"Aperispirifer"
*"Apertirhynchella"
*"Aphanomena"
*"Aphaurosia"
*"Apheathyris"
*"Aphelesia"
*"Aphelotreta"
*"Apheoorthina"
*"Apheoorthis"
*"Aphragmus"
*"Apicilirella"
*"Apletosia"
*"Apodosia"
*"Apollonorthis"
*"Apomatella"
*"Apopentamerus"
*"Aporthophyla"
*"Aporthophylina"
*"Apothyris"
*"Apousiella"
*"Apringia"
*"Apsilingula"
*"Apsocalymma"
*"Apsotreta"
*"Arabatia"
*"Arabicella"
*"Araksalosia"
*"Araneatrypa"
*"Arapsopleurum"
*"Araspirifer"
*"Aratanea"
*"Aratella"
*"Aratoechia"
*"Araxathyris"
*"Araxilevis"
*"Arbizustrophia"
*"Arcelinithyris"
*"Arceythyris"
*"Archaeorthis"
*"Archaiosteges"
*"Archeochonetes"
*"Arcosarina"
*"Arcticalosia"
*"Arctireta"
*"Arctispira"
*"Arctochonetes"
*"Arctohedra"
*"Arctomeristina"
*"Arctothyris"
*"Arcualla"
*"Arcuatothyris"
*"Arcullina"
*"Ardiviscus"
*"Ardmosteges"
*"Arduspirifer"
*"Areella"
*"Arenaciarcula"
*"Arenorthis"
*"Areostrophia"
*"Argella"
*"Argentiproductus"
*"Argorhynx"
*"Argovithyris"
*"Argyrotheca"
*"Arionthia"
*"Arktikina"
*"Aromasithyris"
*"Articalosia"
*"Artimyctella"
*"Artiotreta"
*"Artospirifer"
*"Aseptagypa"
*"Aseptalium"
*"Aseptella"
*"Aseptirhynchia"
*"Aseptonetes"
*"Asiarhynchia"
*"Asioproductus"
*"Askepasma"
*"Asperlinus"
*"Aspidothyris"
*"Aspinosella"
*"Astaristrophia"
*"Astegosia"
*"Astraborthis"
*"Astua"
*"Asturorthis"
*"Astutorhyncha"
*"Asymmetrochonetes"
*"Asymphylotoechia"
*"Asyrinx"
*"Asyrinxia"
*"Atactosia"
*"Atelelasma"
*"Atelelasmoidea"
*"Atelestegastus"
*"Atelithyris"
*"Athabaschia"
*"Athyrhynchus"
*"Athyris"
*"Athyrisina"
*"Athyrisinoides"
*"Athyrisinopsis"
*"Athyrorhynchia"
*"Atlanticocoelia"
*"Atlantida"
*"Atribonium"
*"Atrypa"
*"Atryparia"
*"Atrypella"
*"Atrypellina"
*"Atrypina"
*"Atrypinella"
*"Atrypinopsis"
*"Atrypoidea"
*"Atrypopsis"
*"Atrypunculus"
*"Atrythyris"
*"Attenuatella"
*"Auchmerella"
*"Aucklandirhynchia"
*"Aulacatrypa"
*"Aulacella"
*"Aulacorphora"
*"Aulacothyris"
*"Aulacothyroides"
*"Aulacothyropsis"
*"Aulidospira"
*"Aulie"
*"Aulites"
*"Aulonotreta"
*"Auloprotonia"
*"Aulosteges"
*"Auricolispina"
*"Austinella"
*"Australiarcula"
*"Australina"
*"Australirhynchia"
*"Australispira"
*"Australocoelia"
*"Australosia"
*"Australospirifer"
*"Australostrophia"
*"Austriellula"
*"Austrirhynchia"
*"Austrochoristites"
*"Austrohedra"
*"Austronoplia"
*"Austrospirifer"
*"Austrothyris"
*"Avisyrinx"
*"Avonia"
*"Avonothyris"
*"Axiodeaneia"
*"Azamella"
*"Azygidium"

B

*"Babina"Verify source|date=February 2008 [The name is preoccupied by a section or subgenus of "Rana" frogs named by Thompson in 1912, possibly a valid genus.]
*"Babukella"
*"Backhausina"
*"Bactrynium"
*"Badainjarania"
*"Baeorhynchia"
*"Bagnorthis"
*"Bagrasia"
*"Bailongjiangella"
*"Baissalosteges"
*"Bajanhongorella"
*"Bajanorthis"
*"Bajarinovia"
*"Bajtugania"
*"Bakonyithyris"
*"Balakhonia"
*"Balanoconcha"
*"Balatonspira"
*"Balkhasheconcha"
*"Bancroftina"
*"Bandoproductus"
*"Barbaestrophia"
*"Barbarorthis"
*"Barbarothyris"
*"Barbatulella"
*"Barkolia"
*"Barrandina"
*"Barroisella"
*"Barunkhuraya"
*"Barzellinia"
*"Bashkiria"
*"Basilicorhynchus"
*"Basiliola"
*"Bateridium"
*"Baterospirifer"
*"Bathymyonia"
*"Bathyrhyncha"
*"Baturria"
*"Bazardarella"
*"Beachia"
*"Beckmannia"
*"Becsia"
*"Beecheria"
*"Beichuanella"
*"Beichuanrhynchus"
*"Beitaia"
*"Bejrutella"
*"Bekkeromena"
*"Belbekella"
*"Beleutella"
*"Bellaclathrus"
*"Bellimurina"
*"Belothyris"
*"Bergalarai"Verify source|date=October 2007
*"Beschevella"
*"Betterbergia"
*"Biarea"
*"Bibatiola"
*"Bicarinatina"
*"Bicepsirhynchia"
*"Bicia"
*"Biconostrophia"
*"Biconvexiella"
*"Bicuspina"
*"Bidentatus"
*"Biernatella"
*"Biernatia"
*"Biernatium"
*"Bifida"
*"Bifolium"
*"Bihendulirhynchia"
*"Bihenithyris"
*"Bilaminella"
*"Billingsella"
*"Bilobia"
*"Bilotina"
*"Bimuria"
*"Biparetis"
*"Biplatyconcha"
*"Biplicatoria"
*"Birchsella"
*"Bisculcata"
*"Biseptum"
*"Bisinocoelia"
*"Bistramia"
*"Bisulcina"
*"Bitternella"
*"Bittnerella"
*"Bleshidium"
*"Blyskavomena"
*"Bobinella"
*"Bodrakella"
*"Bohemiella"
*"Bohemirhynchia"
*"Boicinetes"
*"Bojodouvillina"
*"Bojothyris"
*"Bolgarithyris"
*"Bolilaspirifer"
*"Boloria" Grunt 1973 [The name is preoccupied by "Boloria", a butterfly genus.]
*"Bomina"
*"Boonderella"
*"Booralia"
*"Boreadocamara"
*"Boreadorthis"
*"Borealirhynchia"
*"Borealis"
*"Boreiospira"
*"Boreiothyris"
*"Bornhardtina"
*"Borua"
*"Bosquetella"
*"Bothrionia"
*"Bothrostegium"
*"Bothrothyris"
*"Boticum"
*"Botsfordia"
*"Boubeithyris"
*"Bouchardia"
*"Bouchardiella"
*"Boucotella"
*"Boucotia"
*"Boucotides"
*"Boucotinskia"
*"Boucotstrophia"
*"Bowanorthis"
*"Bozshakolia"
*"Brachymimulus"
*"Brachyprion"
*"Brachyspirifer"
*"Brachythyrina"
*"Brachythyrinella"
*"Brachythyris"
*"Brachyzyga"
*"Bracteoleptaena"
*"Bradfordirhynchia"
*"Brahimorthis"
*"Brandysia"
*"Branikia"
*"Brantonites"
*"Brasilioproductus"
*"Breileenia"
*"Brevicamera"
*"Brevilamnulella"
*"Brevipelta"
*"Breviseptum"
*"Brevispirifer"
*"Brimethyris"
*"Brochocarina"
*"Broeggeria"
*"Bronnothyris"
*"Brooksina"
*"Browneella"
*"Brunnirhyncha"
*"Bryorhynchus"
*"Bucequia"
*"Buchanathyris"
*"Buckmanithyris"
*"Bulahdelia"
*"Bullarina"
*"Bullothyris"
*"Buntoxia"
*"Burmirhynchia"
*"Burovia"
*"Burrirhynchia"
*"Busulcata"
*"Butkovia"
*"Buxtonia"
*"Buxtoniella"
*"Buxtonioides"
*"Bynguanoia"
*"Bystromena"

C

*"Cacemia"
*"Cactosteges"
*"Cadomella"
*"Cadudium"
*"Caenanoplia"
*"Caenotreta"
*"Caeroplecia"
*"Calcirhynchia"
*"Caledorhynchia"
*"Callaiaspida"
*"Callicalyptella"
*"Calliglypha"
*"Calliomarginatia"
*"Callipentamerus"
*"Callipleura"
*"Calliprotonia"
*"Callispirifer"
*"Callispirina"
*"Callospiriferina"
*"Callytharrella"
*"Calpella"
*"Calvinaria"
*"Calvirhynchia"
*"Calvustrigis"
*"Calyptolepta"
*"Calyptoria"
*"Camarelasma"
*"Camarium"
*"Camarophorella"
*"Camarophorina"
*"Camarophorinella"
*"Camarospira"
*"Camarothyridina"
*"Camarotoechia"
*"Camarotoechiodes"
*"Cambrotrophia"
*"Camerella"
*"Camerisma"
*"Camerophorina"
*"Camerothyris"
*"Campages"
*"Campylorthis"
*"Canadospira"
*"Canalitatus"
*"Canavirila"
*"Cancellospirifer"
*"Cancellothyris"
*"Cancrinella"
*"Cancrinelloides"
*"Candispirifer"
*"Cantabriella"
*"Canthylotreta"
*"Capelliniella"
*"Capillarina"
*"Capillirhynchia"
*"Capillirostra"
*"Capillispirifer"
*"Capillithyris"
*"Capillomesolobus"
*"Capillonia"
*"Caplinoplia"
*"Carapezzia"
*"Caratrypa"
*"Carbocyrtina"
*"Cardiarina"
*"Cardinirhynchia"
*"Cardinocrania"
*"Cardiothyris"
*"Caricula"
*"Carinagypa"
*"Carinatina"
*"Carinatinella"
*"Carinatothyris"
*"Carinatrypa"
*"Cariniferella"
*"Carinokoninckina"
*"Carlinia"
*"Carneithyris"
*"Carolirhynchia"
*"Carpatothyris"
*"Carpinaria"
*"Carringtonia"
*"Carteridina"
*"Cartorhium"
*"Caryogyps"
*"Caryona"
*"Caryorhynchus"
*"Casquella"
*"Cassianospira"
*"Cassidirostrum"
*"Castellaroina"
*"Catacephalus"
*"Catazyga"
*"Cathaysia"
*"Caucasella"
*"Caucasiproductus"
*"Caucasoproductus"
*"Caucasorhynchia"
*"Caucasothyris"
*"Cavatisinurostrum"
*"Cedulia"
*"Celdobolus"
*"Celebetes"
*"Celidocrania"
*"Celsifornix"
*"Celtanoplia"
*"Cenorhynchia"
*"Centronella"
*"Centronelloidea"
*"Centrorhynchus"
*"Ceocypea"
*"Ceramisia"
*"Cerasina"
*"Ceratreta"
*"Cerberatrypa"
*"Cererithyris"
*"Chaeniorhynchus"
*"Chaganella"
*"Chalimochonetes"
*"Changshaispirifer"
*"Changtangella"
*"Changyangrhynchus"
*"Chaoiella"
*"Chaoina"
*"Chapadella"
*"Chapinella"
*"Charionella"
*"Charionoides"
*"Charltonithyris"
*"Chascothyris"
*"Chathamithyris"
*"Chattertonia"
*"Chatwinothyris"
*"Chaulistomella"
*"Cheirothyris"
*"Cheirothyropsis"
*"Chelononia"
*"Cheniothyris"
*"Chenxianoproductus"
*"Cherkesovaena"
*"Cherubicornea"
*"Chianella"
*"Chile"
*"Chilianshania"
*"Chilidiopsis"
*"Chilidorthis"
*"Chimaerothyris"
*"Chivatschella"
*"Chlupacina"
*"Chlupacitoechia"
*"Chnaurocoelia"
*"Choanodus"
*"Chondronia"
*"Chonetella"
*"Chonetes"
*"Chonetina"
*"Chonetinella"
*"Chonetinetes"
*"Chonetipustula"
*"Chonetoidea"
*"Chonopectella"
*"Chonopectoides"
*"Chonopectus"
*"Chonosteges"
*"Chonostegoidella"
*"Chonostegoides"
*"Chonostrophia"
*"Chonostrophiella"
*"Choperella"
*"Choristitella"
*"Choristites"
*"Choristothyris"
*"Christianella"
*"Christiania"
*"Chrustenopora"
*"Chynistrophia"
*"Cillinella"
*"Cimicinella"
*"Cimicinoides"
*"Cincta"
*"Cinctifera"
*"Cinctopsis"
*"Cinerorthis"
*"Cingolospiriferina"
*"Cingulella"
*"Cingulodermis"
*"Cirpa"
*"Cistellarcula"
*"Claratrypa"
*"Clarkeia"
*"Clarkella"
*"Clathrithyris"
*"Clavigera"
*"Clavodalejina"
*"Cleiothyridina"
*"Cliftonia"
*"Clinambon"
*"Clintonella"
*"Clistotrema"
*"Clitambonites"
*"Clivospirifer"
*"Clorinda"
*"Clorindella"
*"Clorindina"
*"Clorindinella"
*"Cloudella"
*"Cloudothyris"
*"Coelospira"
*"Coelospirella"
*"Coelospirina"
*"Coeloterorhynchus"
*"Coenothyris"
*"Colaptomena"
*"Coledium"
*"Colinella"
*"Collarothyris"
*"Collemataria"
*"Colletostracia"
*"Collinithyris"
*"Collumatus"
*"Colongina"
*"Colophragma"
*"Colosia"
*"Colpotoria"
*"Columellithyris"
*"Comatopoma"
*"Comelicania"
*"Comiotoechia"
*"Companteris"
*"Composita"
*"Compositella"
*"Compressoproductus"
*"Comuquia"
*"Conarosia"
*"Conarothyris"
*"Conchidium"
*"Concinnispirifer"
*"Concinnithyris"
*"Conispirifer"
*"Connectoproductus"
*"Conodiscus"
*"Conomimus"
*"Conotreta"
*"Contradouvillinia"
*"Convexothyris"
*"Coolinia"
*"Cooperina"
*"Cooperispira"
*"Cooperithyris"
*"Cooperrhynchia"
*"Coptothyris"
*"Corbicularia"
*"Cordatomyonia"
*"Corineorthis"
*"Coriothyris"
*"Cornwallia"
*"Coronalosia"
*"Corrugatimediorostrum"
*"Cortezorthis"
*"Corvinopugnax"
*"Corylispirifer"
*"Coscinarina"
*"Coscinophora"
*"Costachonetes"
*"Costacranaena"
*"Costalosiella"
*"Costanoplia"
*"Costatispirifer"
*"Costatrypa"
*"Costatumulus"
*"Costellarina"
*"Costellirostra"
*"Costellispirifer"
*"Costicrura"
*"Costiferina"
*"Costinorella"
*"Costirhynchia"
*"Costisorthis"
*"Costispinifera"
*"Costispirifer"
*"Costispiriferina"
*"Costisteges"
*"Costistricklandia"
*"Costistrophomena"
*"Costistrophonella"
*"Costitrimerella"
*"Costoconcha"
*"Craigella"
*"Cranaena"
*"Crania"
*"Craniops"
*"Craniotreta"
*"Craniscus"
*"Craspedalosia"
*"Craspedelia"
*"Craspedona"
*"Crassatrypa"
*"Crassipunctatrypa"
*"Crassumbo"
*"Cratispirifer"
*"Cratorhynchonella"
*"Cratospirifer"
*"Cremnorthis"
*"Crenispirifer"
*"Cretirhynchia"
*"Cricosia"
*"Crinisaria"
*"Crinisarina"
*"Crinistrophia"
*"Cristicoma"
*"Cristiferina"
*"Cromatrypa"
*"Crossacanthia"
*"Crossalosia"
*"Crossiskenidium"
*"Crozonorthis"
*"Cruralina"
*"Cruratula"
*"Cruricella"
*"Crurirhynchia"
*"Crurispina"
*"Crurithyris"
*"Cryptacanthia"
*"Cryptatrypa"
*"Cryptonella"
*"Cryptopora"
*"Cryptoporella"
*"Cryptorhynchia"
*"Cryptospirifer"
*"Cryptothyris"
*"Cryptotreta"
*"Ctenalosia"
*"Ctenochonetes"
*"Ctenokoninckina"
*"Cubacula"
*"Cubanirhynchia"
*"Cubanothyris"
*"Cudmorella"
*"Cuersithyris"
*"Cumberlandina"
*"Cuneirhynchia"
*"Cuparius"
*"Cupularostrum"
*"Curticia"
*"Curtirhynchia"
*"Cycladigera"
*"Cyclantharia"
*"Cyclocoelia"
*"Cyclomyonia"
*"Cyclorhynchia"
*"Cyclospira"
*"Cyclothyris"
*"Cymatorhynchia"
*"Cymbidium"
*"Cymbistropheodonta"
*"Cymbithyris"
*"Cymbricia"
*"Cymidia"
*"Cymoproductus"
*"Cymostrophia"
*"Cyndalia"
*"Cyphomena"
*"Cyphomenoidea"
*"Cyphotalosia"
*"Cyphoterorhynchus"
*"Cyranoia"
*"Cyrbasiotreta"
*"Cyrolexis"
*"Cyrtalosia"
*"Cyrtella"
*"Cyrtia"
*"Cyrtina"
*"Cyrtinaella"
*"Cyrtinoides"
*"Cyrtinopsis"
*"Cyrtiopsis"
*"Cyrtiorina"
*"Cyrtoniscus"
*"Cyrtonotella"
*"Cyrtonotreta"
*"Cyrtospirifer"
*"Cyrtothyris"
*"Cystothyris"

D

*"Dabashanospira"
*"Dactylogonia"
*"Dactylotreta"
*"Daghanirhynchia"
*"Dagnachonetes"
*"Dagysorhynchia"
*"Dagyspirifer"
*"Dalaia"
*"Dalejina"
*"Dalejodiscus"
*"Dalerhynchus"
*"Dalinuria"
*"Dalligas"
*"Dallina"
*"Dallinella"
*"Dallithyris"
*"Dalmanella"
*"Dalmanellopsis"
*"Danella"
*"Danzania"
*"Darvasia"
*"Dasyalosia"
*"Dasysaria"
*"Datangia"
*"Davidsonella"
*"Davidsonia"
*"Davidsoniatrypa"
*"Davidsonina"
*"Daviesiella"
*"Davinirhynchia"
*"Davoustia"
*"Dawsonelloides"
*"Dayia"
*"Dearbornia"
*"Decoropugnax"
*"Decurtella"
*"Dedzetina"
*"Delepinea"
*"Deltachania"
*"Deltarhynchia"
*"Deltarina"
*"Delthyris"
*"Deltospirifer"
*"Demonedys"
*"Dengalosia"
*"Densalvus"
*"Densepustula"
*"Denticuliphoria"
*"Dentospiriferina"
*"Derbyella"
*"Derbyia"
*"Derbyina"
*"Derbyoides"
*"Dereta"
*"Desatrypa"
*"Desistrophia"
*"Desmoinesia"
*"Desmorthis"
*"Desquamatia"
*"Devonalosia"
*"Devonamphistrophia"
*"Devonaria"
*"Devonochonetes"
*"Devonoproductus"
*"Diabolirhynchia"
*"Diambonia"
*"Diambonioidea"
*"Diandongia"
*"Diaphelasma"
*"Diaphragmus"
*"Diazoma"
*"Dicamara"
*"Dicamaropsis"
*"Dicellomus"
*"Diceromyonia"
*"Dichacaenia"
*"Dichospirifer"
*"Dichozygopleura"
*"Dicoelosia"
*"Dicoelospirifer"
*"Dicoelostrophia"
*"Dicondylotreta"
*"Dictyobolus"
*"Dictyoclostoidea"
*"Dictyoclostus"
*"Dictyonella"
*"Dictyonina"
*"Dictyonites"
*"Dictyostrophia"
*"Dictyothyris"
*"Dictyothyropsis"
*"Dicystoconcha"
*"Didymelasma"
*"Didymoparcium"
*"Didymothyris"
*"Diedrothyris"
*"Dielasma"
*"Dielasmella"
*"Dielasmina"
*"Dienope"
*"Dierisma"
*"Diestothyris"
*"Dignomia"
*"Digonella"
*"Dihelictera"
*"Diholkorhynchia"
*"Dilophosina"
*"Dimegelasma"
*"Dimensionaequalirostrum"
*"Dimerella"
*"Dinarella"
*"Dinarispira"
*"Dinobolus"
*"Dinorthis"
*"Diochthofera"
*"Dioristella"
*"Diorthelasma"
*"Diparelasma"
*"Diplanus"
*"Diplonorthis"
*"Diplospirella"
*"Dipunctella"
*"Diraphora"
*"Dirinus"
*"Discinisca"
*"Discinopsis"
*"Discomyorthis"
*"Discotreta"
*"Discradisca"
*"Disculina"
*"Disphenia"
*"Dispiriferina"
*"Dissoria"
*"Disulcatella"
*"Ditreta"
*"Divaricosta"
*"Dixonella"
*"Dmitria"
*"Dmitrispirifer"
*"Dnestrina"
*"Doescherella"
*"Dogdathyris"
*"Dogdoa"
*"Doleroides"
*"Doleorthis"
*"Dolichobrochus"
*"Dolichomocelypha"
*"Dolichosina"
*"Dolichozygus"
*"Doloresella"
*"Domokhotia"
*"Donalosia"
*"Donella"
*"Dongbaella"
*"Dongbeiispirifer"
*"Donispirifer"
*"Dorashamia"
*"Dorsirugatia"
*"Dorsisinus"
*"Dorsoplicathyris"
*"Dorsoscyphus"
*"Dorytreta"
*"Douvillina"
*"Douvillinaria"
*"Douvillinella"
*"Douvillinoides"
*"Douvinella"
*"Dowhatania"
*"Drabodiscina"
*"Draborthis"
*"Drabovia"
*"Drabovinella"
*"Dracius"
*"Drahanorhynchus"
*"Drahanostrophia"
*"Drepanorhyncha"
*"Droharhynchia"
*"Druganirhynchia"
*"Drummackina"
*"Duartea"
*"Dubaria"
*"Dubioleptina"
*"Dulankarella"
*"Dundrythyris"
*"Duryeella"
*"Dushanirhynchia"
*"Dyoros"
*"Dyschrestia"
*"Dyscolia"
*"Dyscritothyris"
*"Dysoristus"
*"Dysprosorthis"
*"Dyticospirifer"
*"Dzhangirhynchia"
*"Dzhebaglina"
*"Dzieduszyckia"
*"Dzirulina"

E

*"Eatonia"
*"Eatonioides"
*"Eccentricosta"
*"Echinalosia"
*"Echinaria"
*"Echinariella"
*"Echinauris"
*"Echinirhynchia"
*"Echinocoelia"
*"Echinocoeliopsis"
*"Echinoconchella"
*"Echinoconchus"
*"Echinospirifer"
*"Echinosteges"
*"Echyrosia"
*"Ectenoglossa"
*"Ectochoristites"
*"Ectoposia"
*"Ectorensselandia"
*"Ectorhipidium"
*"Ectyphoria"
*"Edreja"
*"Edriosteges"
*"Ehlersella"
*"Eichwaldia"
*"Eifelatrypa"
*"Eifyris"
*"Eilotreta"
*"Ejnespirifer"
*"Elasmata"
*"Elasmothyris"
*"Elderra"
*"Elegesta"
*"Elenchus"
*"Eleutherocrania"
*"Eleutherokomma"
*"Eliorhynchus"
*"Elita"
*"Eliva"
*"Elivella"
*"Elivina"
*"Elkania"
*"Elkanisca"
*"Ella"
*"Ellassonia"
*"Elliottella"
*"Elliottina"
*"Elliptoglossa"
*"Elliptostrophia"
*"Elmaria"
*"Elymospirifer"
*"Elythina"
*"Emanuella"
*"Embolosia"
*"Emeithyris"
*"Enallosia"
*"Enallothecidea"
*"Enantiosphen"
*"Enantiosphenella"
*"Enchodrospirifer"
*"Endospirifer"
*"Endothyris"
*"Endrea"
*"Engenella"
*"Enigmalosia"
*"Ense"
*"Entacanthadus"
*"Enteletella"
*"Enteletes"
*"Enteletina"
*"Eoamphistrophia"
*"Eoanastrophia"
*"Eoantiptychia"
*"Eobiernatella"
*"Eobrachythyrina"
*"Eobrachythyris"
*"Eochonetes"
*"Eochoristitella"
*"Eochoristites"
*"Eocoelia"
*"Eoconcha"
*"Eoconchidium"
*"Eoconulus"
*"Eocramatia"
*"Eodallina"
*"Eodalmanella"
*"Eodevonaria"
*"Eodinobolus"
*"Eodiorthelasma"
*"Eodmitria"
*"Eoglossinotoechia"
*"Eogryphus"
*"Eohemithiris"
*"Eohowellella"
*"Eokarpinskia"
*"Eokirkidium"
*"Eolaballa"
*"Eolacazella"
*"Eolissochonetes"
*"Eolyttonia"
*"Eomaoristrophia"
*"Eomarginifera"
*"Eomartiniopsis"
*"Eomegastrophia"
*"Eonalivkinia"
*"Eoorthis"
*"Eoparaphorhynchus"
*"Eopholidostrophia"
*"Eoplectodonta"
*"Eoplicanoplia"
*"Eoplicoplasia"
*"Eoproductella"
*"Eopugnax"
*"Eoreticularia"
*"Eorhipidomella"
*"Eoscaphelasma"
*"Eoschizophoria"
*"Eoschuchertella"
*"Eoseptaliphoria"
*"Eosericoidea"
*"Eosiphonotreta"
*"Eosophragmophora"
*"Eosotrematorthis"
*"Eospinatrypa"
*"Eospirifer"
*"Eospiriferina"
*"Eospirigerina"
*"Eostrophalosia"
*"Eostropheodonta"
*"Eostrophomena"
*"Eostrophonella"
*"Eosyringothyris"
*"Eothecidellina"
*"Eothele"
*"Eousella"
*"Epelidoaegiria"
*"Ephippelasma"
*"Epicelia"
*"Epicyrta"
*"Epithyris"
*"Epithyroides"
*"Epitomyonia"
*"Equirostra"
*"Erectocephalus"
*"Eremithyris"
*"Eremotoechia"
*"Eremotrema"
*"Ericiatia"
*"Eridmatus"
*"Eridorthis"
*"Erinostrophia"
*"Eripnifera"
*"Erismatina"
*"Eristenosia"
*"Ernogia"
*"Errhynx"
*"Erymnaria"
*"Esilia"
*"Espella"
*"Estlandia"
*"Estonirhynchia"
*"Etheridgina"
*"Etymothyris"
*"Eucalathis"
*"Eucharitina"
*"Eudesella"
*"Eudesia"
*"Eudesites"
*"Eudoxina"
*"Euidothyris"
*"Eumetabolotoechia"
*"Eumetria"
*"Euorthisina"
*"Euractinella"
*"Eurekaspirifer"
*"Euroatrypa"
*"Eurorthisina"
*"Eurycolporhynchus"
*"Eurypthyris"
*"Eurysina"
*"Eurysites"
*"Eurysoria"
*"Euryspirifer"
*"Eurythyris"
*"Eurytreta"
*"Euxinella"
*"Evagyrotheca"
*"Evanescirostrum"
*"Evanidisinurostrum"
*"Evenkina"
*"Evenkinorthis"
*"Evenkorhynchia"
*"Exatrypa"
*"Excavatorhynchia"
*"Exceptothyris"
*"Expellobolus"
*"Experilingula"

F

*"Faksethyris"
*"Falafer"
*"Falciferula"
*"Fallaxispirifer"
*"Fallaxoproductus"
*"Falsatrypa"
*"Famatinorthis"
*"Fanichonetes"
*"Fardenia"
*"Fascicoma"
*"Fascicosta"
*"Fascicostella"
*"Fasciculina"
*"Fascifera"
*"Fascistropheodonta"
*"Fascizetina"
*"Fehamya"
*"Felinotoechia"
*"Fenestrirostra"
*"Fengzuella"
*"Fenxiangella"
*"Ferganella"
*"Ferganoproductus"
*"Fernglenia"
*"Ferrax"
*"Ferrobolus"
*"Ferrythyris"
*"Fezzanoglossa"
*"Ffynnonia"
*"Fibulistrophia"
*"Fidespirifer"
*"Filiatrypa"
*"Filiconcha"
*"Filigreenia"
*"Fimbriaria"
*"Fimbrinia"
*"Fimbriothyris"
*"Fimbrispirifer"
*"Finkelnburgia"
*"Finospirifer"
*"Fissirhynchia"
*"Fistulogonites"
*"Fitzroyella"
*"Flabellirhynchia"
*"Flabellitesia"
*"Flabellocyrtia"
*"Flabellothyris"
*"Flabellulirostrum"
*"Flectcherithyris"
*"Fletcherina"
*"Fletcherithyroides"
*"Flexaria"
*"Flexathyris"
*"Floweria"
*"Fluctuaria"
*"Foliomena"
*"Fordinia"
*"Forma"
*"Formosarhynchia"
*"Fortunella"
*"Fossatrypa"
*"Foveola"
*"Frankiella"
*"Frechella"
*"Fredericksia"
*"Frenula"
*"Fulcriphoria"
*"Furcirhynchia"
*"Furcitella"
*"Fusella"
*"Fusichonetes"
*"Fusiproductus"
*"Fusirhynchia"
*"Fusispirifer"

G

*"Gacella"
*"Gacina"
*"Galataestrophia"
*"Galeatathyris"
*"Galeatella"
*"Galeatellina"
*"Galeoatagypa"
*"Galliennithyris"
*"Gamonetes"
*"Gamphalosia"
*"Gasconsia"
*"Gashaomiaoia"
*"Gastrodetoechia"
*"Gefonia"
*"Gegenella"
*"Gelidorthidina"
*"Gelidorthis"
*"Gemerithyris"
*"Gemmarcula"
*"Gemmellaroia"
*"Gemmellaroialla"
*"Gemmulicosta"
*"Geniculifera"
*"Geniculigypa"
*"Geniculina"
*"Geniculomclearnites"
*"Georgethyris"
*"Geranocephalus"
*"Gerassimovia"
*"Gerkispira"
*"Gerolsteinites"
*"Gerothyris"
*"Gerrhynx"
*"Geyerella"
*"Gibberostrophia"
*"Gibbirhynchia"
*"Gibbithyris"
*"Gibbochonetes"
*"Gibbospirifer"
*"Gigantoproductus"
*"Gigantorhynchus"
*"Gigantothyris"
*"Gilledia"
*"Giraldiella"
*"Girlasia"
*"Girtyella"
*"Gisilina"
*"Gissarina"
*"Gjelispinifera"
*"Glabrichonetina"
*"Gladiostrophia"
*"Glaphyorthis"
*"Glassia"
*"Glassina"
*"Glazewskia"
*"Glendonia"
*"Globatrypa"
*"Globiella"
*"Globirhynchia"
*"Globispirifer"
*"Globithyris"
*"Globosobucina"
*"Globosochonetes"
*"Globosoproductus"
*"Globulirhynchia"
*"Glossella"
*"Glosseudesia"
*"Glosshypothyridina"
*"Glossinotoechia"
*"Glossinulina"
*"Glossinulirhynchia"
*"Glossinulus"
*"Glossoleptaena"
*"Glossorthis"
*"Glossothyropsis"
*"Glottidia"
*"Glyphisaria"
*"Glyptacrothrele"
*"Glyptambonites"
*"Glypterina"
*"Glyptias"
*"Glyptoglossella"
*"Glyptogypa"
*"Glyptomena"
*"Glyptorhynchia"
*"Glyptoria"
*"Glyptorthis"
*"Glyptosteges"
*"Glyptotrophia"
*"Glytospirifer"
*"Gmelinmagas"
*"Gnathorhynchia"
*"Goleomixa"
*"Goliathyris"
*"Gonambonites"
*"Gonathyris"
*"Gondolina"
*"Goniarina"
*"Goniophoria"
*"Goniorhynchia"
*"Goniothyris"
*"Goniothyropsis"
*"Goniotrema"
*"Goniurhynchia"
*"Gorgostrophia"
*"Gorjanskya"
*"Gorystrophia"
*"Gotatrypa"
*"Goungjunspirifer"
*"Gracianella"
*"Gracilotoechia"
*"Grammoplecia"
*"Grammorhynchus"
*"Grandaurispina"
*"Grandiproductella"
*"Grandirhynchia"
*"Grantonia"
*"Granulirhynchia"
*"Grasirhynchia"
*"Grayina"
*"Greenfieldia"
*"Grorudia"
*"Gruenewaldtia"
*"Grumantia"
*"Gruntallina"
*"Gryphus"
*"Guangdangina"
*"Guangjiayanella"
*"Guangshunia"
*"Guangxiispirifer"
*"Guaxa"
*"Gubleria"
*"Guicyrtia"
*"Guilinospirifer"
*"Guistrophia"
*"Guizhovella"
*"Gunnarella"
*"Gunningblandella"
*"Gusarella"
*"Guttasella"
*"Gwynia"
*"Gwyniella"
*"Gypidula"
*"Gypidulella"
*"Gypidulina"
*"Gypiduloides"
*"Gypospirifer"
*"Gyroselenella"
*"Gyrosina"
*"Gyrosoria"
*"Gyrothyris"

H

*"Habrobrochus"
*"Hadrorhynchia"
*"Hadrosia"
*"Hadrotorhynchus"
*"Hadrotreta"
*"Hadyrhyncha"
*"Hagabirhynchia"
*"Hallina"
*"Hallinetes"
*"Halorella"
*"Halorellina"
*"Halorelloidea"
*"Hamburgia"
*"Hamlingella"
*"Hamptonina"
*"Hanaeproductus"
*"Hansotreta"
*"Hanusatrypa"
*"Haplospirifer"
*"Harknessella"
*"Harmatosia"
*"Harpidium"
*"Harttella"
*"Haupiria"
*"Havlicekella"
*"Havlicekia"
*"Haydenella"
*"Haydenoides"
*"Hebertella"
*"Hebetoechia"
*"Hedeina"
*"Hedeinopsis"
*"Hedstroemina"
*"Heimia"
*"Helaspis"
*"Helenathyris"
*"Heleniproductus"
*"Heligothyris"
*"Helmersenia"
*"Helvetella"
*"Hemichonetes"
*"Hemileurus"
*"Hemiplethorhynchus"
*"Hemipronites"
*"Hemiptychina"
*"Hemistringocephalus"
*"Hemithiris"
*"Hemithyropsis"
*"Hemitoechia"
*"Heosomocelypha"
*"Herangirhynchia"
*"Hercosestria"
*"Hercosia"
*"Hercostrophia"
*"Hercothyris"
*"Hergetatrypa"
*"Hesperinia"
*"Hesperithyris"
*"Hesperomena"
*"Hesperonomia"
*"Hesperonomiella"
*"Hesperorhynchia"
*"Hesperorthis"
*"Hesperosia"
*"Hesperotrophia"
*"Hessenhausia"
*"Heteralosia"
*"Heteraria"
*"Heterelasma"
*"Heterobrochus"
*"Heteromychus"
*"Heterorthella"
*"Heterorthina"
*"Heterorthis"
*"Hibernodonta"
*"Himalairhynchia"
*"Himathyris"
*"Hindella"
*"Hinganella"
*"Hingganoleptaena"
*"Hipparionix"
*"Hircinisca"
*"Hirnantia"
*"Hirsutella"
*"Hiscobeccus"
*"Hisingerella"
*"Hispanirhynchia"
*"Hispidaria"
*"Histosyrinx"
*"Holcorhynchella"
*"Holcorhynchia"
*"Holcospirifer"
*"Holcothyris"
*"Hollardiella"
*"Hollardina"
*"Holorhynchus"
*"Holosia"
*"Holotricharina"
*"Holtedahlina"
*"Holynatrypa"
*"Holynetes"
*"Homaliarhynchia"
*"Homeocardiorhynchus"
*"Homeorhynchia"
*"Homevalaria"
*"Homoeospira"
*"Homoeospirella"
*"Homotreta"
*"Hontorialosia"
*"Horderleyella"
*"Horridonia"
*"Hoskingia"
*"Hostimex"
*"Howellella"
*"Howellites"
*"Howelloidea"
*"Howittia"
*"Howseia"
*"Huatangia"
*"Hubeiproductus"
*"Huenella"
*"Huenellina"
*"Hulterstadia"
*"Humaella"
*"Hunanochonetes"
*"Hunanoproductus"
*"Hungarispira"
*"Hungaritheca"
*"Hustedia"
*"Hustedtiella"
*"Hyattidina"
*"Hyborhynchella"
*"Hybostenoscisma"
*"Hybostenoscisma"
*"Hynniphoria"
*"Hyperobolus"
*"Hypoleiorhynchus"
*"Hypolinoproductus"
*"Hyponeatrypa"
*"Hypopsia"
*"Hypothyridina"
*"Hypselonetes"
*"Hypseloterorhynchus"
*"Hypsiptycha"
*"Hypsomyonia"
*"Hysterohowellella"
*"Hysterolites"
*"Hystriculina"

I

*"Iberirhynchia"
*"Iberithyris"
*"Idioglyptus"
*"Idiorthis"
*"Idiospira"
*"Idiostrophia"
*"Iheringithyris"
*"Ikella"
*"Iliella"
*"Ilmarinia"
*"Ilmenia"
*"Ilmeniopsis"
*"Ilmenispina"
*"Ilmospirifer"
*"Ilyinella"
*"Imacanthyris"
*"Imbrexia"
*"Imbricatia"
*"Imbricatospira"
*"Imdentistella"
*"Impiacus"
*"Implexina"
*"Inaequalis"
*"Incisius"
*"Incorthis"
*"Independatrypa"
*"Indigia"
*"Indorhynchia"
*"Indospirifer"
*"Inflatia"
*"Infurca"
*"Ingria"
*"Iniathyris"
*"Iniproductus"
*"Innaechia"
*"Innuitella"
*"Inopinatarcula"
*"Insignitisinurostrum"
*"Institella"
*"Institifera"
*"Institina"
*"Inversella"
*"Inversithyris"
*"Invertina"
*"Invertrypa"
*"Iotina"
*"Iowarhynchus"
*"Iowatrypa"
*"Ipherron"
*"Irboskites"
*"Irenothyris"
*"Irgislella"
*"Irhirea"
*"Iridostrophia"
*"Iru"
*"Ishimia"
*"Isjuminelina"
*"Isjuminella"
*"Ismenia"
*"Isochonetes"
*"Isocrania"
*"Isogramma"
*"Isophragma"
*"Isopoma"
*"Isorthis"
*"Isospinatrypa"
*"Isovella"
*"Israelaria"
*"Issedonia"
*"Isumithyris"
*"Ivanothyris"
*"Ivanoviella"
*"Ivdelinella"
*"Ivdelinia"
*"Ivshinella"
*"Iwaispirifer"

J

*"Jaanussonites"
*"Jaisalmeria"
*"Jakutella"
*"Jakutochonetes"
*"Jakutoproductus"
*"Jakutostrophia"
*"Jamesella"
*"Janiceps"
*"Janiomya"
*"Janius"
*"Japanithyris"
*"Jarovathyris"
*"Jercia"
*"Jevinellina"
*"Jezercia"
*"Jiangdaspirifer"
*"Jielingia"
*"Jiguliconcha"
*"Jilinia"
*"Jilinmartinia"
*"Jilinospirifer"
*"Jipuproductus"
*"Jisuina"
*"Jivinella"
*"Jkella"Verify source|date=October 2007
*"Johnsonathyris"
*"Johnsonetes"
*"Johnsoniatrypa"
*"Jolonica"
*"Jolvia"
*"Jonesea"
*"Joviatrypa"
*"Juralina"
*"Juresania"
*"Juvavella"
*"Juvavellina"

K

*"Kabanoviella"
*"Kachathyris"
*"Kadraliproductus"
*"Kajnaria"
*"Kalitvella"
*"Kalitvella"
*"Kallirhynchia"
*"Kamoica"
*"Kampella"
*"Kaninospirifer"
*"Kansuella"
*"Kaplex"
*"Kaplicona"
*"Karadagella"
*"Karadagithyris"
*"Karakulina"
*"Karathele"
*"Karavankina"
*"Karbous"
*"Karlicium"
*"Karnotreta"
*"Karpatiella"
*"Karpinskia"
*"Kasakhstania"
*"Kasetia"
*"Kassinella"
*"Katastrophomena"
*"Katunia"
*"Kavesia"
*"Kawhiarhynchia"
*"Kayserella"
*"Kayseria"
*"Kedrpvpthyris"
*"Kelamelia"
*"Kelusia"
*"Kendzhilgithyris"
*"Kentronetes"
*"Keokukia"
*"Keratothyris"
*"Kericserella"
*"Kerpina"
*"Keyserlingia"
*"Keyserlingina"
*"Khangaestrophia"
*"Khasaghia"
*"Khasagtina"
*"Khinganospirifer"
*"Khodalevichia"
*"Kholbotchonia"
*"Kiaeromena"
*"Kiangsiella"
*"Kikaithyris"
*"Kimatothyris"
*"Kindleina"
*"Kinelina"
*"Kingena"
*"Kingenella"
*"Kinghiria"
*"Kinnella"
*"Kintathyris"
*"Kirkidium"
*"Kirkina"
*"Kisilia"
*"Kitakamithyris"
*"Kjaerina"
*"Kjerulfina"
*"Kleithriatreta"
*"Klipsteinella"
*"Klipsteinelloidea"
*"Klukatrypa"
*"Kochiproductus"
*"Koeveskallina"
*"Koigia"
*"Kokomerena"
*"Kolihium"
*"Kolymithyris"
*"Komiella"
*"Komispirifer"
*"Komukia"
*"Koninckella"
*"Koninckina"
*"Koninckodonta"
*"Konstantia"
*"Korjakirhynchia"
*"Kosirium"
*"Kosoidea"
*"Kotlaia"
*"Kotujella"
*"Kotujotreta"
*"Kotylotreta"
*"Kotysex"
*"Kozhuchinella"
*"Kozlenia"
*"Kozlowskia"
*"Kozlowskiellina"
*"Kozlowskites"
*"Kransia"
*"Krattorthis"
*"Kraussina"
*"Krejcigrafella"
*"Krimargyrotheca"
*"Kritorhynchia"
*"Krizistrophia"
*"Krotovia"
*"Kueichowella"
*"Kullervo"
*"Kulumbella"
*"Kumbella"
*"Kundatella"
*"Kungaella"
*"Kunlunia"
*"Kurakithyris"
*"Kurtomarginifera"
*"Kurzgunia"
*"Kutchirhynchia"
*"Kutchithyris"
*"Kutorgina"
*"Kutorginella"
*"Kuvelousia"
*"Kvesanirhynchia"
*"Kwangsia"
*"Kwangsirhynchus"
*"Kymatothyris"
*"Kyrshabaktella"
*"Kyrtatrypa"

L

*"Labaia"
*"Laballa"
*"Labriproductus"
*"Lacazella"
*"Lachrymula"
*"Lacunaerhynchia"
*"Lacunarites"
*"Lacunites"
*"Lacunosella"
*"Ladjia"
*"Ladogia"
*"Ladogiella"
*"Ladogifornix"
*"Ladogilina"
*"Ladogilinella"
*"Ladogiodes"
*"Laevicyphomena"
*"Laevigaterhynchia"
*"Laevirhynchia"
*"Laevispirifer"
*"Laevithyris"
*"Laevorhynchia"
*"Laima"
*"Laioporella"
*"Lamanskya"
*"Lambdarina"
*"Lamcispinifera"
*"Lamellaerhynchia"
*"Lamelliconchidium"
*"Lamellokoninckina"
*"Lamellosathyris"
*"Lamellosia"
*"Laminatia"
*"Lamnaespina"
*"Lamnimargus"
*"Lampangella"
*"Lanceomyonia"
*"Lanchangjiangia"
*"Langella"
*"Langkawai"Verify source|date=October 2007
*"Langshanthyris"
*"Lanipustula"
*"Laosia"
*"Lapasnia"
*"Lapradella"
*"Laqueus"
*"Larispirifer"
*"Larium"
*"Lateralatirostrum"
*"Laterispina"
*"Lathamella"
*"Laticrura"
*"Latiflexa"
*"Latiplecus"
*"Latiproductus"
*"Latirhynchia"
*"Latispirifer"
*"Latonotoechia"
*"Lazella"
*"Lazithyris"
*"Lazutkinia"
*"Leangella"
*"Lebediorthis"
*"Leiochonetes"
*"Leiolepismatina"
*"Leioproductus"
*"Leiorhynchoidea"
*"Leiorhynchoides"
*"Leiorhynchus"
*"Leioria"
*"Leioseptathyris"
*"Leiothyridina"
*"Lenatoechia"
*"Lenothyris"
*"Lenzia"
*"Leontiella"
*"Lepidocrania"
*"Lepidocycloides"
*"Lepidocyclus"
*"Lepidoleptaena"
*"Lepidomena"
*"Lepidorhynchia"
*"Lepidorthis"
*"Lepidospirifer"
*"Lepismatina"
*"Leptaena"
*"Leptaenisca"
*"Leptaenoidia"
*"Leptaenomenclax"
*"Leptaenopoma"
*"Leptaenopyxis"
*"Leptagonia"
*"Leptalosia"
*"Leptathyris"
*"Leptella"
*"Leptellina"
*"Leptelloidea"
*"Leptembolon"
*"Leptestia"
*"Leptestiina"
*"Leptobolus"
*"Leptocaryorhyncus"
*"Leptochonetes"
*"Leptocoelia"
*"Leptocoelina"
*"Leptodonta"
*"Leptodontella"
*"Leptodus"
*"Leptoskelidion"
*"Leptospira"
*"Leptostrophia"
*"Leptostrophiella"
*"Leptothyrellopsis"
*"Lercarella"
*"Lethamia"
*"Leurosina"
*"Levenea"
*"Levibiseptum"
*"Leviconchidiella"
*"Levigatella"
*"Levipugnax"
*"Levipustula"
*"Levispira"
*"Levitusia"
*"Lialosia"
*"Libyaeglossa"
*"Libyaerhynchus"
*"Libys"
*"Licharewia"
*"Lichnatrypa"
*"Lievinella"
*"Liljevallia"
*"Limbatrypa"
*"Limbella"
*"Limbifera"
*"Limbimurina"
*"Limstrophina"
*"Lindinella"
*"Lindstroemella"
*"Lingatrypa"
*"Lingshanella"
*"Linguithyris"
*"Lingula"
*"Lingulapholis"
*"Lingularia"
*"Lingulasma"
*"Lingulella"
*"Lingulellotreta"
*"Lingulepis"
*"Lingulipora"
*"Lingulobolus"
*"Lingulodiscina"
*"Lingulops"
*"Linguopugnoides"
*"Linnarssonella"
*"Linnarssonia"
*"Linoporella"
*"Linoproductus"
*"Linoprotonia"
*"Linostrophomena"
*"Linterella"
*"Linxiangxiella"
*"Liocoelia"
*"Lioleptaena"
*"Liosotella"
*"Liospiriferina"
*"Liostrophia"
*"Liothyrella"
*"Lipanteris"
*"Liramia"
*"Liraplecta"
*"Liraria"
*"Liraspirifer"
*"Lirellaria"
*"Lirellarina"
*"Liricamera"
*"Liriplica"
*"Lissajousithyris"
*"Lissatrypa"
*"Lissatrypella"
*"Lissatrypoidea"
*"Lissella"
*"Lissidium"
*"Lissochonetes"
*"Lissocoelina"
*"Lissoleptaena"
*"Lissomarginifera"
*"Lissopleura"
*"Lissorhynchia"
*"Lissosia"
*"Lissostrophia"
*"Lissothyris"
*"Lissotreta"
*"Litocothia"
*"Litothyris"
*"Liveringia"
*"Lixatrypa"
*"Ljaschenkovia"
*"Ljudmilispirifer"
*"Llanoella"
*"Loboidothyris"
*"Loboidothyropsis"
*"Loborina"
*"Lobothyris"
*"Lobothyroides"
*"Lochkothele"
*"Loczyella"
*"Loenthyris"
*"Loganella"
*"Loilemia"
*"Lokutella"
*"Lomatiphora"
*"Lomatorthis"
*"Longdongshuia"
*"Longispina"
*"Longithyris"
*"Longxianirhynchia"
*"Lopasnia"
*"Loperia"
*"Lophrothyris"
*"Lopingia"
*"Lorangerella"
*"Lordorthis"
*"Loreleiella"
*"Loriolithyris"
*"Losvia"
*"Lotharingella"
*"Lowenstamia"
*"Loxophragmus"
*"Luanquella"
*"Ludfordina"
*"Luhaia"
*"Luhotreta"
*"Lunaria"
*"Lunoglossa"
*"Lunpolia"
*"Luofuia"
*"Lurgiticoma"
*"Luterella"
*"Lutetiarcula"
*"Lychnothyris"
*"Lycophoria"
*"Lyonia"
*"Lysidium"
*"Lysigypa"
*"Lyttonia"

M

*"Maakina"
*"Mabella"
*"Macandrevia"
*"Machaeraria"
*"Machaerocolella"
*"Machaerotoechia"
*"Mackerrovia"
*"Maclarenella"
*"Macrocoelia"
*"Macropleura"
*"Macropotamorhynchus"
*"Madarosia"
*"Madoia"
*"Maemia"
*"Magadania"
*"Magadina"
*"Magadinella"
*"Magas"
*"Magasella"
*"Magella"
*"Magellania"
*"Magharithyris"
*"Magicostrophia"
*"Magnicanalis"
*"Magniplicatina"
*"Magniventra"
*"Magnumbonella"
*"Majkopella"
*"Makridinirhynchia"
*"Malayanoplia"
*"Malinella"
*"Malleia"
*"Malloproductus"
*"Maltaia"
*"Malurostrophia"
*"Malwirhynchia"
*"Mametothyris"
*"Mamutinetes"
*"Manespira"
*"Mangkeluia"
*"Manosia"
*"Mansina"
*"Maorielasma"
*"Maorirhynchia"
*"Maoristrophia"
*"Mapingtichia"
*"Marcharella"
*"Margaritiproductus"
*"Marginalosia"
*"Marginatia"
*"Marginicinctus"
*"Marginifera"
*"Marginirugus"
*"Marginoproductus"
*"Marginorthis"
*"Marginovatia"
*"Mariannaella"
*"Marinurnula"
*"Marionites"
*"Maritimithyris"
*"Markamia"
*"Markitoechia"
*"Marklandella"
*"Martinia"
*"Martiniella"
*"Martiniopsis"
*"Martinothyris"
*"Matanoleptodus"
*"Matutella"
*"Mauispirifer"
*"Maxillirhynchia"
*"Mayaothyris"
*"Maydenella"
*"Mcewanella"
*"Mclearnites"
*"Mclearnitesella"
*"Medessia"
*"Mediospirifer"
*"Mediterranirhynchia"
*"Meekella"
*"Megachonetes"
*"Megaderbyia"
*"Megakozlowskiella"
*"Megalosia"
*"Megamyonia"
*"Meganterella"
*"Meganteris"
*"Megaplectatrypa"
*"Megapleuronia"
*"Megasalopina"
*"Megaspinochonetes"
*"Megasteges"
*"Megastrophia"
*"Megastropiella"
*"Megathyris"
*"Megatschernyschewia"
*"Megerlia"
*"Megerlina"
*"Meglopterorhynchus"
*"Megousia"
*"Megumatrypa"
*"Meifodia"
*"Mendacella"
*"Mendathyris"
*"Mennespirifer"
*"Mentzelia"
*"Mentzelioides"
*"Mentzeliopsis"
*"Meonia"
*"Merciella"
*"Merista"
*"Meristella"
*"Meristelloides"
*"Meristina"
*"Meristorygma"
*"Meristospira"
*"Merophricus"
*"Merospirifer"
*"Mesocrania"
*"Mesodouvillina"
*"Mesoleptostrophia"
*"Mesolissostrophia"
*"Mesolobus"
*"Mesonomia"
*"Mesopholidostrophia"
*"Mesoplica"
*"Mesotreta"
*"Metabolipa"
*"Metacamarella"
*"Metaplasia"
*"Metathyrisina"
*"Metorthis"
*"Metriolepis"
*"Mexicaria"
*"Mezounia"
*"Miaohuangrhynchus"
*"Micella"
*"Micidus"
*"Mickwitzia"
*"Micraphelia"
*"Microcardinalia"
*"Micromitra"
*"Microrhynchia"
*"Microsphaeridiorhynchu"Verify source|date=October 2007
*"Microtrypa"
*"Mictospirifer"
*"Millythyris"
*"Mimaria"
*"Mimella"
*"Mimikonstantia"
*"Mimorina"
*"Minatrypa"
*"Mingenewia"
*"Miniprokopia"
*"Minispina"
*"Minithyris"
*"Minororthis"
*"Minutalirhynchia"
*"Minutostropheodonta"
*"Minysphenia"
*"Minythyra"
*"Miogryphus"
*"Mirifusella"
*"Mirilingula"
*"Mirisquamea"
*"Mirorthis"
*"Misolia"
*"Mistproductus"
*"Mitchellella"
*"Miyakothyris"
*"Mjoesina"
*"Moderatoproductus"
*"Modestella"
*"Moeschia"
*"Mogoktella"
*"Mogoliella"
*"Moisseievia"
*"Molongcola"
*"Molongella"
*"Molongia"
*"Monadotoechia"
*"Monelasmina"
*"Mongoliella"
*"Mongoliopsis"
*"Mongolirhynchia"
*"Mongolorhynx"
*"Mongolosia"
*"Mongolospira"
*"Monobolina"
*"Monoconvexa"
*"Monomerella"
*"Monorthis"
*"Monsardithyris"
*"Montanella"
*"Monticlarella"
*"Monticulifera"
*"Montsenetes"
*"Moorefieldella"
*"Moorelina"
*"Moorellina"
*"Moquellina"
*"Moraviaturia"
*"Moravilla"
*"Moravostrophia"
*"Morganella"
*"Morinorhynchus"
*"Morphorhynchus"
*"Morrisithyris"
*"Mosquella"
*"Moumina"
*"Moutonithyris"
*"Mucrospirifer"
*"Mucrospiriferinella"
*"Muirwoodella"
*"Muirwoodia"
*"Multicorhynchia"
*"Multicostella"
*"Multiridgia"
*"Multispinula"
*"Multispirifer"
*"Munhella"
*"Munieratrypa"
*"Muriferella"
*"Murihikurhynchia"
*"Murinella"
*"Murjukiana"
*"Murravia"
*"Musculina"
*"Mutationella"
*"Mycerosia"
*"Mylloconotreta"
*"Myodethyrium"
*"Myopugnax"
*"Myotreta"
*"Myriospirifer"
*"Myrmirhynx"
*"Mystrophora"

N

*"Nabarredia"
*"Nabiaoia"
*"Nadiastrophia"
*"Nahoniella"
*"Najadospirifer"
*"Najdinothyris"
*"Nakazatothyris"
*"Nalivkinaria"
*"Nalivkinia"
*"Nanambonites"
*"Nanatrypa"
*"Nannirhynchia"
*"Nanorthis"
*"Nanospira"
*"Nanothyris"
*"Nantanella"
*"Nanukidium"
*"Naradanithyris"
*"Narynella"
*"Nasonirhynchia"
*"Nastosia"
*"Naukat"
*"Navispira"
*"Nayunnella"
*"Neatrypa"
*"Nebenothyris"
*"Negramithyris"
*"Neimongolella"
*"Nekhoroshevia"
*"Nekvasiloveia"
*"Nekvasilovella"
*"Nematocrania"
*"Nemesa"
*"Neobolus"
*"Neobouchardia"
*"Neochonetes"
*"Neocirpa"
*"Neocoelia"
*"Neocramatia"
*"Neocrania"
*"Neocyrtina"
*"Neodelthyris"
*"Neofascicosta"
*"Neoglobithyris"
*"Neogypidula"
*"Neokarpinskia"
*"Neokjaerina"
*"Neoliothyrina"
*"Neometabolipa"
*"Neophricadothyris"
*"Neoplicatifera"
*"Neoretzia"
*"Neorhynchula"
*"Neoschizophoria"
*"Neospirifer"
*"Neospirigerina"
*"Neostrophia"
*"Neothecidella"
*"Neothyris"
*"Neotreta"
*"Neowellerella"
*"Neoyanguania"
*"Nepasitoechia"
*"Nereidella"
*"Nerthebrochus"
*"Nervostrophia"
*"Neumanella"
*"Neumania"
*"Neumayrithyris"
*"Newberria"
*"Nicolella"
*"Nicoloidea"
*"Nicolorthis"
*"Nigerinoplica"
*"Nikiforovaena"
*"Nikolaevirhynchus"
*"Ningbingella"
*"Ninglongothyris"
*"Niorhynx"
*"Nipponirhynchia"
*"Nipponithyris"
*"Nisusia"
*"Niutoushania"
*"Niviconia"
*"Nix"
*"Nochoroiella"
*"Nocturneilla"
*"Nodaea"
*"Nodella"
*"Noetlingia"
*"Nordathyris"
*"Nordella"
*"Nordispirifer"
*"Nordotoechia"
*"Norella"
*"Notanoplia"
*"Nothokuvelousia"
*"Nothopindax"
*"Nothorthis"
*"Notiobolus"
*"Notiochonetes"
*"Notoconchidium"
*"Notoleptaena"
*"Notolosia"
*"Notoparmella"
*"Notorthisina"
*"Notosaria"
*"Notoscaphidia"
*"Notosia"
*"Notospirifer"
*"Notostrophia"
*"Notothyrina"
*"Notothyris"
*"Novellinetes"
*"Novozemelia"
*"Nubialba"
*"Nucleata"
*"Nucleatina"
*"Nucleatula"
*"Nucleorhynchia"
*"Nucleospira"
*"Nucleusorhynchia"
*"Nudauris"
*"Nudirostralina"
*"Nudispiriferina"
*"Nudymia"
*"Nugnecella"
*"Nuguschella"
*"Numericoma"
*"Nurataella"
*"Nuria"
*"Nurochonetes"
*"Nushbiella"
*"Nyalamurhynchia"
*"Nyege"
*"Nymphorhynchia"

O

*"Oanduporella"
*"Obesaria"
*"Oblongarcula"
*"Obnixia"
*"Obolella"
*"Obolopsis"
*"Obolorugia"
*"Obolus"
*"Obovothyris"
*"Obscurella"
*"Obsoletirhynchia"
*"Obturamentella"
*"Ochotathyris"
*"Ochotorhynchia"
*"Ocnerorthis"
*"Ocorthis"
*"Odarovithyris"
*"Odontospirifer"
*"Odoratus"
*"Oehlertella"
*"Oepikina"
*"Oepikinella"
*"Oepikites"
*"Ogbinia"
*"Ogilviella"
*"Oglu"
*"Oglupes"
*"Ogmoplecia"
*"Ogmusia"
*"Oina"
*"Oiosia"
*"Okathyris"
*"Oldhamina"
*"Oldhaminella"
*"Oleneothyris"
*"Olentotreta"
*"Oleorthis"
*"Olgerdia"
*"Oligomys"
*"Oligoptycherhynchus"
*"Oligorachis"
*"Oligorhynchia"
*"Oligorhytisia"
*"Oligorthis"
*"Oligothyrina"
*"Ombonia"
*"Omnutakhella"
*"Omolonella"
*"Omolonia"
*"Omolonorhynchia"
*"Omolonothyris"
*"Onavia"
*"Oncosarina"
*"Onniella"
*"Onnizetina"
*"Onopordumaria"
*"Onugorhynchia"
*"Onychoplecia"
*"Onychotreta"
*"Opikella"
*"Opisconidion"
*"Opisthotreta"
*"Opsiconidion"
*"Orbicoelia"
*"Orbiculatisiurostrum"
*"Orbiculoidea"
*"Orbiculopora"
*"Orbiculothyris"
*"Orbinaria"
*"Orbirhynchia"
*"Orbithele"
*"Orenburgella"
*"Oriensellina"
*"Orientospira"
*"Orientospirifer"
*"Orientothyris"
*"Origostrophia"
*"Oriskania"
*"Orlovirhynchia"
*"Ornatothyrella"
*"Ornatothyris"
*"Ornithella"
*"Ornithothyris"
*"Ornothyrella"
*"Orthambonites"
*"Orthidiella"
*"Orthidium"
*"Orthiella"
*"Orthis"
*"Orthisocrania"
*"Orthocarina"
*"Ortholina"
*"Orthopleura"
*"Orthorhynchuloides"
*"Orthorhyncula"
*"Orthospirifer"
*"Orthostrophella"
*"Orthostrophia"
*"Orthotetella"
*"Orthotetes"
*"Orthotetoides"
*"Orthothetina"
*"Orthothrix"
*"Orthothyris"
*"Orthotichia"
*"Orthotoma"
*"Orthotropia"
*"Orulgania"
*"Orusia"
*"Oslogonites"
*"Osmarella"
*"Otariella"
*"Otarorhynchia"
*"Otospirifer"
*"Ottadalenites"
*"Otusia"
*"Ovalospira"
*"Ovatathyris"
*"Ovatia"
*"Overtonia"
*"Overtoniina"
*"Ovidiella"
*"Ovlatchania"
*"Owenirhynchia"
*"Oxlosia"
*"Oxoplecia"
*"Oxycolpella"
*"Oxypleurorhynchia"
*"Ozora"

P

*"Pachancorhynchia"
*"Pachyglossella"
*"Pachymagas"
*"Pachyplax"
*"Pachythyris"
*"Pacificocoelia"
*"Pacymoorellina"
*"Paeckelmanella"
*"Pahlenella"
*"Palaeobolus"
*"Palaeochoristites"
*"Palaeoglossa"
*"Palaeoldhamina"
*"Palaeoleptostrophia"
*"Palaeoschizophoria"
*"Palaeoschmidtites"
*"Palaeospirifer"
*"Palaeostrophomena"
*"Palaeotrimerella"
*"Paldiskites"
*"Paleostrophia"
*"Palmerhytis"
*"Pamirorhynchia"
*"Pamirotheca"
*"Pamirothyris"
*"Pamirothyropsis"
*"Pammegetherhynchus"
*"Pampoecilorhynchus"
*"Panderina"
*"Pantellaria"
*"Papiliolinus"
*"Papillostrophia"
*"Papodina"
*"Paraacanthothyris"
*"Parabifolium"
*"Paraboubeithyris"
*"Parabuxtonia"
*"Paracapillithyris"
*"Parachonetella"
*"Parachonetes"
*"Parachoristites"
*"Paracomposita"
*"Paracostanoplia"
*"Paracraniops"
*"Paracrothyris"
*"Paracrurithyris"
*"Parademonedys"
*"Paraderbyia"
*"Paradinobolus"
*"Paradolerorthis"
*"Paradoxothyris"
*"Paradygella"
*"Paraemanuella"
*"Parageyerella"
*"Paraglossinulus"
*"Parahemiptychina"
*"Parajuresania"
*"Parakansuella"
*"Parakarpinskia"
*"Parakingena"
*"Paralaballa"
*"Paralazutkinia"
*"Paraldingia"
*"Paralenorthis"
*"Paralepismatina"
*"Paraleptodus"
*"Paraleptostrophia"
*"Parallelelasma"
*"Parallelora"
*"Paralyttonia"
*"Paramarginatia"
*"Paramarginifera"
*"Parameekella"
*"Paramentzelia"
*"Paramerista"
*"Paramesolobus"
*"Paramonticulifera"
*"Paramuirwoodia"
*"Paranaia"
*"Paranisopleurella"
*"Paranorella"
*"Paranorellina"
*"Parantiptychia"
*"Paranudirostralina"
*"Paraoligorhyncha"
*"Paraonychoplecia"
*"Paraorthotetina"
*"Parapholidostrophia"
*"Paraphorhynchus"
*"Paraplatythyris"
*"Paraplicanoplia"
*"Paraplicatifera"
*"Parapugnax"
*"Parapulchratia"
*"Paraquadrithyris"
*"Parareticularia"
*"Pararhactorhynchia"
*"Pararhipidium"
*"Pararhynchospirina"
*"Paraspirifer"
*"Paraspiriferina"
*"Parastringocephalus"
*"Parastrophina"
*"Parastrophinella"
*"Parastrophonella"
*"Parasulcatinella"
*"Paratetratomia"
*"Parathecidea"
*"Parathyridina"
*"Parathyrisina"
*"Paratreta"
*"Paratribonium"
*"Parazyga"
*"Parenteletes"
*"Parmephrix"
*"Parmorthina"
*"Parmorthis"
*"Parmula"
*"Paromalomena"
*"Paromoeopygma"
*"Parthirhynchia"
*"Parunicinella"
*"Parvaltissimarostrum"
*"Parvirhynchia"
*"Paryphella"
*"Paryphorhynchopora"
*"Patagorhynchia"
*"Paterina"
*"Paterorthis"
*"Paterula"
*"Patriaspirifer"
*"Paucicostella"
*"Paucicrura"
*"Paucispinauria"
*"Paucispinifera"
*"Paucistrophia"
*"Paulinella"
*"Paulonia"
*"Paurogastroderhynchus"
*"Paurorhyncha"
*"Paurorthina"
*"Paurorthis"
*"Payuella"
*"Pectenoproductus"
*"Pectorhyncha"
*"Peculneithyris"
*"Peetzatrypa"
*"Pegmarhynchia"
*"Pegmathyris"
*"Pegmatreta"
*"Peleicostella"
*"Pelmanella"
*"Pelonomia"
*"Peltichia"
*"Pembrostrophia"
*"Peniculauris"
*"Pennospiriferina"
*"Pentactinella"
*"Pentagonia"
*"Pentamerella"
*"Pentamerifera"
*"Pentameroides"
*"Pentamerus"
*"Pentithyris"
*"Pentlandella"
*"Pentlandina"
*"Penzhinella"
*"Penzhinothyris"
*"Perakia"
*"Peratos"
*"Perditocardinia"
*"Peregrinella"
*"Peregrinellina"
*"Peregrinelloidea"
*"Periallus"
*"Perichonetes"
*"Peridalejina"
*"Perigeyerella"
*"Perimecocoelia"
*"Perissothyris"
*"Peristerothyris"
*"Peritrimerella"
*"Peritritoechia"
*"Permasyrinx"
*"Permianella"
*"Permicola"
*"Permochonetes"
*"Permophricodothyris"
*"Permorthotestes"
*"Permospirifer"
*"Permundaria"
*"Perrarisinurostrum"
*"Perrierithyris"
*"Perryspirifer"
*"Peshiatrypa"
*"Pesterevatrypa"
*"Petalochonetes"
*"Petalothyris"
*"Petasmaia"
*"Petasmaria"
*"Petasmatherus"
*"Petria"
*"Petrocrania"
*"Petroria"
*"Petshorospirifer"
*"Pexidella"
*"Phaceloorthis"
*"Phapsirhynchia"
*"Pharcidodiscus"
*"Phenacozugmayerella"
*"Philhedra"
*"Philhedrella"
*"Philippotia"
*"Phlogoiderhynchus"
*"Phoenicitoechia"
*"Pholidostrophia"
*"Phragmophora"
*"Phragmorthis"
*"Phragmostrophia"
*"Phragmothyris"
*"Phrenophoria"
*"Phricodothyris"
*"Phyllonia"
*"Phymatothyris"
*"Physemella"
*"Physetorhynchia"
*"Physotreta"
*"Piarorhynchella"
*"Piarorhynchia"
*"Picnotreta"
*"Pictothyris"
*"Pilkena"
*"Piloricilla"
*"Pinaxiothyris"
*"Pinegathyris"
*"Pinghuangella"
*"Pinguaella"
*"Pinguispirifer"
*"Pionodema"
*"Pionomena"
*"Pionopleurum"
*"Pionorthis"
*"Pionothyris"
*"Pirgulia"
*"Pirithyris"
*"Pirotella"
*"Pirotothyris"
*"Pisirhynchia"
*"Placothyris"
*"Placotriplesia"
*"Plaesiomys"
*"Plagiorhyncha"
*"Planalvus"
*"Planatrypa"
*"Plancella"
*"Planicardina"
*"Planihaydenella"
*"Planirhynchia"
*"Planispina"
*"Planodouvillina"
*"Planoharknessella"
*"Planoproductus"
*"Planothyris"
*"Planovatirostrum"
*"Platidia"
*"Platycancrinella"
*"Platyconcha"
*"Platyglossariorhynchus"
*"Platymena"
*"Platyorthis"
*"Platyrachella"
*"Platyselma"
*"Platyspirifer"
*"Platystrophia"
*"Platyterorhynchus"
*"Platythyris"
*"Platytoechia"
*"Plebejochonetes"
*"Plectambonites"
*"Plectatrypa"
*"Plectelasma"
*"Plectella"
*"Plectocamara"
*"Plectoconcha"
*"Plectodonta"
*"Plectodontella"
*"Plectoglossa"
*"Plectoidothyris"
*"Plectorhynchella"
*"Plectorthis"
*"Plectospira"
*"Plectosyntrophia"
*"Plectothyrella"
*"Plectothyris"
*"Plectotreta"
*"Plectotrophia"
*"Pleiopleurina"
*"Plekonella"
*"Plekonina"
*"Plesicarinatina"
*"Plesiothyris"
*"Plethorhyncha"
*"Pleuraloma"
*"Pleurelasma"
*"Pleurochonetes"
*"Pleurocornu"
*"Pleurodium"
*"Pleuropugnoides"
*"Pleurorthis"
*"Pleurothyrella"
*"Plicaea"
*"Plicanoplia"
*"Plicanoplites"
*"Plicarostrum"
*"Plicatifera"
*"Plicatiferina"
*"Plicatocyrtia"
*"Plicatoderbya"
*"Plicatolingula"
*"Plicatoria"
*"Plicatospiriferella"
*"Plicatosyrinx"
*"Plicidium"
*"Plicirhynchia"
*"Plicochonetes"
*"Plicocoelina"
*"Plicocyrtia"
*"Plicocyrtina"
*"Plicodevonaria"
*"Plicogypa"
*"Plicoplasia"
*"Plicoproductus"
*"Plicostricklandia"
*"Plicostropheodonta"
*"Plicotorynifer"
*"Plionoptycherhynchus"
*"Pliothyrina"
*"Ploughsharella"
*"Podolella"
*"Podtscheremia"
*"Poikilosakos"
*"Poloniproductus"
*"Polylasma"
*"Polymorpharia"
*"Polytoechia"
*"Pomatospirella"
*"Pomatotrema"
*"Pomeraniotreta"
*"Pomeromena"
*"Pompeckium"
*"Pompoecilorhynchus"
*"Pondospirifer"
*"Pontalorhynchia"
*"Pontielasma"
*"Pontisia"
*"Porambonites"
*"Porambonitoides"
*"Poramborthis"
*"Porostictia"
*"Portneufia"
*"Portranella"
*"Posicomta"
*"Postepithyris"
*"Pradochonetes"
*"Pradoia"
*"Praeangustothyris"
*"Praeargyrotheca"
*"Praecubanothyris"
*"Praecyclothyris"
*"Praegibbithyris"
*"Praegnamtenia"
*"Praegoniothyris"
*"Praehorridonia"
*"Praelacazella"
*"Praelacunosella"
*"Praelongithyris"
*"Praemonticlarella"
*"Praeneothyris"
*"Praeudesia"
*"Praewaagenoconcha"
*"Prantlina"
*"Prelissorhynchia"
*"Primipilaria"
*"Primorewia"
*"Prionorhynchia"
*"Prionothyris"
*"Proanadyrella"
*"Proatribonium"
*"Probolarina"
*"Probolionia"
*"Proboscidella"
*"Proboscidina"
*"Proboscisambon"
*"Procarinatina"
*"Procerulina"
*"Prochlidonophora"
*"Prochoristitella"
*"Proconchidium"
*"Prodavidsonia"
*"Productella"
*"Productellana"
*"Productellina"
*"Productelloides"
*"Productina"
*"Productorthis"
*"Productus"
*"Progonambonites"
*"Prokopia"
*"Prolazutkina"
*"Promarginifera"
*"Properotundirostrum"
*"Propriopugnus"
*"Propygope"
*"Prorensselaeria"
*"Proreticularia"
*"Prorichtofenia"
*"Prorugaria"
*"Proschizophoria"
*"Prosoponella"
*"Prospira"
*"Prosserella"
*"Prostricklandia"
*"Protambonites"
*"Protanidanthus"
*"Protathyris"
*"Protatrypa"
*"Proteguliferina"
*"Protegulorhynchia"
*"Proteorhynchia"
*"Proteorthis"
*"Protobolus"
*"Protochonetes"
*"Protocortezorthis"
*"Protocymostrophia"
*"Protodouvillina"
*"Protogamginifera"
*"Protogusarella"
*"Protohesperonomia"
*"Protoleptostrophia"
*"Protomegastrophia"
*"Protomendacella"
*"Protoniella"
*"Protophragmapora"
*"Protoreticularia"
*"Protorhyncha"
*"Protorthis"
*"Protoshaleria"
*"Protoskenidiodes"
*"Prototeguliferina"
*"Prototegulithyris"
*"Prototreta"
*"Protozeuga"
*"Protozyga"
*"Psamathopalass"
*"Psebajithyris"
*"Pseudatrypa"
*"Pseudoanisopleurella"
*"Pseudoantoquatonia"
*"Pseudoaulacothyris"
*"Pseudoavonia"
*"Pseudobolus"
*"Pseudobornhardtina"
*"Pseudocamaratoechia"
*"Pseudocamarophoria"
*"Pseudochonetes"
*"Pseudoconchidium"
*"Pseudocrania"
*"Pseudocyrtina"
*"Pseudoderbyia"
*"Pseudodicellomus"
*"Pseudodicoelosia"
*"Pseudodielasma"
*"Pseudodouvillina"
*"Pseudogibbirhynchia"
*"Pseudoglossirotoechia"
*"Pseudoglossothyris"
*"Pseudogruenewalldtia"
*"Pseudohalorella"
*"Pseudoharttina"
*"Pseudohomeospira"
*"Pseudokingena"
*"Pseudokymatothyris"
*"Pseudolabaia"
*"Pseudolaballa"
*"Pseudolepismatina"
*"Pseudoleptellina"
*"Pseudoleptodus"
*"Pseudolingula"
*"Pseudomarginifera"
*"Pseudomendacella"
*"Pseudomeristina"
*"Pseudometoptoma"
*"Pseudomimella"
*"Pseudomonticlarella"
*"Pseudomonticulifera"
*"Pseudonudirostra"
*"Pseudoparazyga"
*"Pseudopentagonia"
*"Pseudopholidops"
*"Pseudoporambonites"
*"Pseudoprotathyris"
*"Pseudopugnax"
*"Pseudopygoides"
*"Pseudorhaetina"
*"Pseudorostranteris"
*"Pseudorugitela"
*"Pseudosieberella"
*"Pseudosinotectirostrum"
*"Pseudospiriferina"
*"Pseudospondylospira"
*"Pseudostrophalosia"
*"Pseudostrophochonetes"
*"Pseudostrophomena"
*"Pseudosyringothyris"
*"Pseudosyrinx"
*"Pseudotybithyris"
*"Pseudouncinulus"
*"Pseudoundispirifer"
*"Pseudowattonithyris"
*"Pseudowellerella"
*"Pseudoyunnanella"
*"Psilocamara"
*"Psilocamerella"
*"Psiloria"
*"Psilothyris"
*"Psioidea"
*"Psioidiella"
*"Pteroplecta"
*"Pterospirifer"
*"Pterostrophia"
*"Ptilorhynchia"
*"Ptilotorhynchus"
*"Ptychoglyptus"
*"Ptychomaletoechia"
*"Ptychopeltis"
*"Ptychopleurella"
*"Ptyctorhynchia"
*"Ptyctothyris"
*"Ptygmactrum"
*"Puanatrypa"
*"Puanospirifer"
*"Pugilis"
*"Pugnaria"
*"Pugnax"
*"Pugnoides"
*"Pulchratia"
*"Pulsia"
*"Punctatrypa"
*"Punctocyrtella"
*"Punctolira"
*"Punctospirella"
*"Punctospirifer"
*"Punctothyris"
*"Punctspinatrypa"
*"Purdonella"
*"Pusillagutta"
*"Pustula"
*"Pustulatia"
*"Pustuloplica"
*"Pustulospiriferina"
*"Pycnobrochus"
*"Pycnoria"
*"Pygites"
*"Pygmaella"
*"Pygmochonetes"
*"Pygope"
*"Pyraeneica"
*"Pyramidathyris"
*"Pyramina"

Q

*"Qianjiangella"
*"Qianomena"
*"Qiansispirifer"
*"Qilianoconcha"
*"Qilianotryma"
*"Qilianotrypa"
*"Qinghaispiriferina"
*"Qinglongia"
*"Qingthyris"
*"Qingyenia"
*"Qinlingia"
*"Qinlingotoechia"
*"Qispiriferina"
*"Quadratia"
*"Quadratirhynchia"
*"Quadrifarius"
*"Quadrisonia"
*"Quadrithyrina"
*"Quadrithyris"
*"Quadrochonetes"
*"Quangyuania"
*"Quasiavonia"
*"Quasidavidsonia"
*"Quasimartina"
*"Quasistrophonella"
*"Quasithambonia"
*"Quebecia"
*"Quinlingia"
*"Quinquenella"
*"Quiriagites"
*"Quizhouspirifer"
*"Quondogia"

R

*"Rackirhynchia"
*"Radiatrypa"
*"Radimatrypa"
*"Radiomena"
*"Rafanoglossa"
*"Rafinesquina"
*"Rahouiarhynchia"
*"Railtonella"
*"Ralia"
*"Rallacosta"
*"Ramavectus"
*"Ramovsina"
*"Ranorthis"
*"Raridium"
*"Rariella"
*"Rastelligera"
*"Ratburia"
*"Raunites"
*"Ravozetina"
*"Rawdonia"
*"Rectambitus"
*"Rectigypidida"
*"Rectirhynchia"
*"Rectithyris"
*"Rectotrophia"
*"Redlichella"
*"Reedoconcha"
*"Reeftonella"
*"Reeftonia"
*"Reflexia"
*"Reinversella"
*"Remnevitoechia"
*"Renaudia"
*"Rensselaeria"
*"Rensselaerina"
*"Rensselandia"
*"Rensselandioidea"
*"Replcoskenidioides"
*"Resserella"
*"Retaria"
*"Retichonetes"
*"Reticularia"
*"Reticulariina"
*"Reticulariopsis"
*"Reticulatia"
*"Reticulatochonetes"
*"Reticulatrypa"
*"Retimarginifera"
*"Retroplexus"
*"Retrorsirostra"
*"Retzia"
*"Retziella"
*"Retzispirifer"
*"Reuschella"
*"Reversella"
*"Rhactomena"
*"Rhactorhynchia"
*"Rhactorthis"
*"Rhaetina"
*"Rhaetinopsis"
*"Rhamnaria"
*"Rhapidothyris"
*"Rhenorensselaria"
*"Rhenostrophia"
*"Rhenothyris"
*"Rhinotreta"
*"Rhipidium"
*"Rhipidomella"
*"Rhipidomelloides"
*"Rhipidomena"
*"Rhipidothyris"
*"Rhizothyris"
*"Rhombaria"
*"Rhomboidella"
*"Rhombothyris"
*"Rhondellina"
*"Rhynchoferella"
*"Rhynchonella"
*"Rhynchonellina"
*"Rhynchonelloidea"
*"Rhynchonelloidella"
*"Rhynchonellopsis"
*"Rhynchopora"
*"Rhynchorina"
*"Rhynchorthis"
*"Rhynchospirifer"
*"Rhynchospirina"
*"Rhynchotetra"
*"Rhynchotetraoides"
*"Rhynchotrema"
*"Rhynchotreta"
*"Rhynchotretina"
*"Rhyncora"
*"Rhynobolus"
*"Rhynoleichus"
*"Rhyselasma"
*"Rhysostrophia"
*"Rhysotreta"
*"Rhyssochonetes"
*"Rhytialosia"
*"Rhytiophora"
*"Rhytirhynchia"
*"Rhytisia"
*"Rhytisoria"
*"Rhytistrophia"
*"Richthofenia"
*"Rictia"
*"Rigauxia"
*"Rigbyella"
*"Rimirhynchia"
*"Rimirhynchopsis"
*"Riograndella"
*"Rionorhynchia"
*"Riorhynchia"
*"Rioultina"
*"Ripidiorhynchus"
*"Robertorthis"
*"Robinsonella"
*"Robustirhynchia"
*"Rochatorhynchia"
*"Rocheithyris"
*"Rochtex"
*"Roemerella"
*"Romingerina"
*"Rorespirifer"
*"Rosella"
*"Rosobolus"
*"Rossirhynchus"
*"Rossithyris"
*"Rostranteris"
*"Rostricellula"
*"Rostrirhynchia"
*"Rostrospirifer"
*"Rotaia"
*"Rotundostrophia"
*"Rouillieria"
*"Rowellella"
*"Rowleyella"
*"Rozmanaria"
*"Rudirhynchia"
*"Ruegenella"
*"Rufispirifer"
*"Rugaltarostrum"
*"Rugaria"
*"Rugatia"
*"Rugauris"
*"Rugia"
*"Rugicostella"
*"Rugitela"
*"Rugithyris"
*"Rugivestis"
*"Rugoclostus"
*"Rugoconcha"
*"Rugodavidsonia"
*"Rugoleptaena"
*"Rugolepyros"
*"Rugosatrypa"
*"Rugosochonetes"
*"Rugosomarginifera"
*"Rugosothyris"
*"Rugosowerbyella"
*"Rugostrophia"
*"Rurambonites"
*"Russiella"
*"Russirhynchia"
*"Rustella"
*"Ruthiphiala"
*"Rutorhynchia"
*"Rutrumella"
*"Ryocarhynchus"
*"Rzonsnickiana"

*"Saccogonum"
*"Saccorhynchia"
*"Sacothyris"
*"Sacothyropsis"
*"Saesorthis"
*"Saetosina"
*"Sagueresia"
*"Saharonetes"
*"Sajakella"
*"Sakawairhynchia"
*"Salacorthis"
*"Salairella"
*"Salairina"
*"Salairotoechia"
*"Salanygolina"
*"Salgirella"
*"Salonia"
*"Salopia"
*"Salopina"
*"Salopinella"
*"Sampo"
*"Sandia" Sutherland & Harlow 1973 [The name is preoccupied by "Sandia", a butterfly genus.]
*"Sandrella"
*"Sangiaothyris"
*"Sanjuanella"
*"Sanjuanetes"
*"Sanjuania"
*"Sanxiaella"
*"Sardope"
*"Sardorhynchia"
*"Sarganostega"
*"Sarytchevinella"
*"Satpakella"
*"Saucrobrochus"
*"Saucrorthis"
*"Saukrodictya"
*"Savageina"
*"Scacchinella"
*"Scalpellirhynchia"
*"Scambocris"
*"Scamnomena"
*"Scapharina"
*"Scaphelasma"
*"Scaphiocoelia"
*"Scaphorthis"
*"Sceletonia"
*"Scenesia"
*"Schachriomonia"
*"Schalidomorthis"
*"Schedophyla"
*"Schegultania"
*"Schellwienella"
*"Schistochonetes"
*"Schizambon"
*"Schizobolus"
*"Schizocrania"
*"Schizonema"
*"Schizopholis"
*"Schizophorella"
*"Schizophoria"
*"Schizoramma"
*"Schizoria"
*"Schizospirifer"
*"Schizostrophina"
*"Schizotreta"
*"Schizotretoides"
*"Schmidtites"
*"Schnurella"
*"Schrenkiella"
*"Schuchertella"
*"Schuchertellopsis"
*"Schuchertina"
*"Schwagerispira"
*"Scissicosta"
*"Scoloconcha"
*"Sculptospirifer"
*"Scumulus"
*"Scutepustula"
*"Securina"
*"Securithyris"
*"Sedenticellula"
*"Selenella"
*"Selennjachia"
*"Sellithyris"
*"Selloproductus"
*"Semenewia"
*"Semibrachythyrina"
*"Semicostella"
*"Semileptagonia"
*"Semilingula"
*"Seminucella"
*"Seminula"
*"Semiotoechia"
*"Semiplanella"
*"Semiplanus"
*"Semiproductus"
*"Semitreta"
*"Sendaithyris"
*"Senokosica"
*"Sentolunia"
*"Sentosia"
*"Sentosoioides"
*"Septacamera"
*"Septachonetes"
*"Septalaria"
*"Septalariopsis"
*"Septaliphoria"
*"Septaliphorioidea"
*"Septamphiclina"
*"Septapermella"
*"Septarinia"
*"Septasteges"
*"Septathyris"
*"Septatoechia"
*"Septatrypa"
*"Septemirostellum"
*"Septiconcha"
*"Septirhynchia"
*"Septocamarella"
*"Septocrurella"
*"Septocyclothyris"
*"Septoparmella"
*"Septorthis"
*"Septospirifer"
*"Septospirigirella"
*"Septosyringothyris"
*"Septothyris"
*"Septulirhynchia"
*"Seratrypa"
*"Serbarinia"
*"Serbiarhynchia"
*"Serbiothyris"
*"Sergospirifer"
*"Sergunkovia"
*"Sericoidea"
*"Serratocrista"
*"Serrulatrypa"
*"Seseloisi
*"Sestropoma"
*"Setigerites"
*"Settedabania"
*"Severella"
*"Severginella"
*"Shagamella"
*"Shaleria"
*"Shaleriella"
*"Sharpirhynchia"
*"Shiquianella"
*"Shiragia"
*"Shishapangmaella"
*"Shlyginia"
*"Shordolella"
*"Shoshonorthis"
*"Shouxianella"
*"Shrockia"
*"Shumardella"
*"Siberiothyris"
*"Siberistrophia"
*"Sibiratrypa"
*"Sibiria"
*"Sibirispira"
*"Sibiritoechia"
*"Sicelia"
*"Sichuanrhynchis"
*"Sicorhyncha"
*"Sicularia"
*"Sieberella"
*"Sigmelasma"
*"Sigopallus"
*"Sikasella"
*"Silesiathyris"
*"Simplicarina"
*"Sinochonetes"
*"Sinoglossa"
*"Sinoproductella"
*"Sinorhynchia"
*"Sinorthis"
*"Sinoshaleria"
*"Sinostrophia"
*"Sinotectirostrum"
*"Sinotrimerella"
*"Sinuatella"
*"Sinucosta"
*"Sinucostella"
*"Sinuplicorhynchia"
*"Sinusella"
*"Siphonobolus"
*"Siphonosia"
*"Siphonotreta"
*"Sivorthis"
*"Skelidorygma"
*"Skenidioides"
*"Skenidium"
*"Slavinithyris"
*"Slovenirhynchia"
*"Smeathenella"
*"Smirnovaena"
*"Smirnovina"
*"Snezhnorhynchia"
*"Socraticum"
*"Sogxianthyris"
*"Sokolskya"
*"Solidipontirostrum"
*"Solitudinella"
*"Somalirhynchia"
*"Somalitela"
*"Somalithyris"
*"Sommeriella"
*"Sonculina"
*"Songzichonetes"
*"Soudleyella"
*"Sowerbina"
*"Sowerbyella"
*"Sowerbyites"
*"Spanodonta"
*"Spasskothyris"
*"Sphaerathyris"
*"Sphaerirhynchia"
*"Sphaeroidothyris"
*"Sphenalosia"
*"Sphenarina"
*"Sphenophragmus"
*"Sphenorhynchia"
*"Sphenorthis"
*"Sphenospira"
*"Sphenosteges"
*"Sphenotreta"
*"Sphriganaria"
*"Spinarella"
*"Spinatrypa"
*"Spinatrypina"
*"Spinauris"
*"Spinella"
*"Spinifrons"
*"Spinilingula"
*"Spinispirifer"
*"Spinocarinifera"
*"Spinochonetes"
*"Spinocyrtia"
*"Spinolepismatina"
*"Spinolyttonia"
*"Spinomarginifera"
*"Spinomartinia"
*"Spinoplasia"
*"Spinopunctatrypa"
*"Spinorthis"
*"Spinorugifera"
*"Spinospirifer"
*"Spinostrophia"
*"Spinulicosta"
*"Spinuliplica"
*"Spinulothele"
*"Spinulothyris"
*"Spirelytha"
*"Spirifer"
*"Spiriferella"
*"Spiriferellina"
*"Spiriferelloides"
*"Spiriferina"
*"Spiriferinaella"
*"Spiriferinoides"
*"Spirigerella"
*"Spirigerellina"
*"Spirigerina"
*"Spirinella"
*"Spirisosium"
*"Spiropunctifera"
*"Spitzbergenia"
*"Spondyglossella"
*"Spondylobolus"
*"Spondylopyxis"
*"Spondylospira"
*"Spondylostrophia"
*"Spondylothyris"
*"Spondylotreta"
*"Spuriosa"
*"Spurispirifer"
*"Spyridiophora"
*"Squamaria"
*"Squamathyris"
*"Squamatina"
*"Squamilingulella"
*"Squamiplana"
*"Squamirhynchia"
*"Squamularia"
*"Squamulariina"
*"Stainbrookia"
*"Stauromata"
*"Stegacanthia"
*"Stegerhynchops"
*"Stegerhynchus"
*"Stegocornu"
*"Stegorhynchella"
*"Steinhagella"
*"Stelckia"
*"Stenaulacorhynchus"
*"Stenocamara"
*"Stenoglossariorhynchus"
*"Stenogmus"
*"Stenometoporhynchus"
*"Stenopentamerus"
*"Stenorhynchia"
*"Stenorina"
*"Stenosarina"
*"Stenoscisma"
*"Stepanoconchus"
*"Stepanoviella"
*"Stepanoviina"
*"Stereochia"
*"Stethothyris"
*"Stichotrophia"
*"Stictozoster"
*"Stilpnotreta"
*"Stiphrothyris"
*"Stipulina"
*"Stolmorhynchia"
*"Stolzenburgiella"
*"Straelenia"
*"Streptaria"
*"Streptis"
*"Streptopomum"
*"Streptorhynchus"
*"Striatifera"
*"Striatochonetes"
*"Striatoproductella"
*"Striatopugnax"
*"Striatorhynchus"
*"Striatospica"
*"Stricklandia"
*"Stricklandiella"
*"Stricklandistrophia"
*"Strictozoster"
*"Strigirhynchia"
*"Strigospina"
*"Striirhynchia"
*"Striirichthofenia"
*"Striispirifer"
*"Striithyris"
*"Stringocephalus"
*"Stringodiscus"
*"Stringomimus"
*"Striochonetes"
*"Strixella"
*"Strongylobrochus"
*"Strongyloria"
*"Strophalosia"
*"Strophalosiella"
*"Strophalosiina"
*"Strophochonetes"
*"Strophodonta"
*"Strophomena"
*"Strophonella"
*"Strophonellites"
*"Strophonelloides"
*"Strophopleura"
*"Strophoprion"
*"Strophoproductus"
*"Strophorichthofenia"
*"Stroudithyris"
*"Struveina"
*"Struvethyris"
*"Sturtella"
*"Subansiria"
*"Subcuspidella"
*"Subglobosochonetes"
*"Subrensselandia"
*"Subriana"
*"Subsinucephalus"
*"Subspirifer"
*"Substriatifera"
*"Subtaeniothaerus"
*"Subtransmena"
*"Suessia"
*"Sufetirhyncha"
*"Suiaella"
*"Sulcataria"
*"Sulcathyris"
*"Sulcatina"
*"Sulcatinella"
*"Sulcatorthis"
*"Sulcatospira"
*"Sulcatospirifer"
*"Sulcatostrophia"
*"Sulcatothyris"
*"Sulcicosta"
*"Sulcicostula"
*"Sulciphoria"
*"Sulciplica"
*"Sulciplicatatrypa"
*"Sulcirhynchia"
*"Sulcirostra"
*"Sulcirugaria"
*"Sulcispiriferina"
*"Sulcorhynchia"
*"Sulcupentamerus"
*"Sulevorthis"
*"Supertrilobus"
*"Surindia"
*"Svalbardia"
*"Svalbardoproductus"
*"Svaljavithyris"
*"Svetlania"
*"Svobodaina"
*"Swaicoelia"
*"Swantonia"
*"Symmatrypa"
*"Symphythyris"
*"Synatrypa"
*"Syndielasma"
*"Syntrophia"
*"Syntrophina"
*"Syntrophinella"
*"Syntrophioides"
*"Syntrophodonta"
*"Syntrophopsis"
*"Sypharatrypa"
*"Syringospira"
*"Syringothyris"
*"Systenothyris"

T

*"Tabarhynchus"
*"Tabellina"
*"Tacinia"
*"Tadschikia"
*"Taemostrophia"
*"Taeniothaerus"
*"Taffia"
*"Tafilaltia"
*"Taimyrella"
*"Taimyropsis"
*"Taimyrothyris"
*"Taimyrrhynx"
*"Tainotoechia"
*"Tainuirhynchia"
*"Talasoproductus"
*"Talentella"
*"Taleoleptaena"
*"Talovkorhynchia"
*"Tamarella"
*"Tanakura"
*"Tanerhynchia"
*"Tanggularella"
*"Tangshanella"
*"Tangxiangia"
*"Tannuspirifer"
*"Tanyoscapha"
*"Tanyothyris"
*"Taoqupospira"
*"Tapajotia"
*"Taphrodonta"
*"Taphrorthis"
*"Taphrosestria"
*"Tarandrospirifer"
*"Tarfaya"
*"Tarutiglossa"
*"Tashanomena"
*"Tasmalella"
*"Tastaria"
*"Tatjamoa"
*"Tatjania"
*"Tauromenia"
*"Taurothyris"
*"Tautosia"
*"Tazzarinia"
*"Tchadania"
*"Tcharella"
*"Tchegemithyris"
*"Tcherskidium"
*"Tecnocyrtina"
*"Tectarea"
*"Tectatrypa"
*"Tegulella"
*"Teguliferina"
*"Tegulithyris"
*"Tegulocrea"
*"Tegulorhynchia"
*"Teichertina"
*"Teichostrophia"
*"Telaeoshaleria"
*"Teleoproductus"
*"Telothyris"
*"Tenellodermis"
*"Tenisia"
*"Tenticospirifer"
*"Tenuiatrypa"
*"Tenuichonetes"
*"Tenuicostella"
*"Tenuisinurostrum"
*"Teratelasma"
*"Teratelasmella"
*"Terebratalia"
*"Terebrataliopsis"
*"Terebratella"
*"Terebratula"
*"Terebratulina"
*"Terebratuloidea"
*"Terebrirostra"
*"Terrakea"
*"Tesuquea"
*"Tetjuchithyris"
*"Tetracamera"
*"Tetractinella"
*"Tetragonetes"
*"Tetraloba"
*"Tetralobula"
*"Tetraodontella"
*"Tetraphalerella"
*"Tetrarhynchia"
*"Tetratomia"
*"Texarina"
*"Texathyris"
*"Thaerodonta"
*"Thamnosia"
*"Thaumatrophia"
*"Thebesia"
*"Thecidea"
*"Thecidella"
*"Thecidellina"
*"Thecidiopsis"
*"Thecocyrtella"
*"Thecocyrtelloidea"
*"Thecospira"
*"Thecospirella"
*"Thecospiropsis"
*"Thedusia"
*"Theodossia"
*"Thiemella"
*"Thliborhynchia"
*"Thomasaria"
*"Thomasella"
*"Thuleproductus"
*"Thurmannella"
*"Thyratryaria"
*"Thysanobolus"
*"Thysanotos"
*"Tiaretithyris"
*"Tibetatrypa"
*"Tibetothyris"
*"Tichirhynchus"
*"Tichosina"
*"Tilasia"
*"Timalina"
*"Timaniella"
*"Timanospirifer"
*"Timorhynchia"
*"Timorina"
*"Tingella"
*"Tipispirifer"
*"Tiramnia"
*"Tismanorthis"
*"Tissintia"
*"Titanambonites"
*"Titanaria"
*"Titanomena"
*"Titanothyris"
*"Tityrophoria"
*"Tivertonia"
*"Tobejalotreta"
*"Togaella"
*"Togatrypa"
*"Tolmatchoffia"
*"Tomasina"
*"Tomestenoporhynchus"
*"Tomilia"
*"Tomiopsis"
*"Tomiproductus"
*"Tonasirhynchia"
*"Tongzithyris"
*"Tonsella"
*"Toquimaella"
*"Toquimia"
*"Tornquistia"
*"Torquirhynchia"
*"Torynechus"
*"Torynelasma"
*"Torynifer"
*"Toryniferella"
*"Tosuhuthyris"
*"Totia"
*"Tourmakeadia"
*"Toxonelasma"
*"Toxorthis"
*"Transennatia"
*"Transversaria"
*"Trasgu"
*"Trautscholdia"
*"Treioria"
*"Trematis"
*"Trematobolus"
*"Trematorthis"
*"Trematosia"
*"Trematospira"
*"Treptotreta"
*"Tretorhynchia"
*"Triadispira"
*"Triadithyris"
*"Triangope"
*"Triasorhynchia"
*"Triathyris"
*"Trichochonetes"
*"Trichorhynchia"
*"Trichothyris"
*"Tricoria"
*"Tridensilis"
*"Trifidarcula"
*"Trifidorostellum"
*"Trigonatrypa"
*"Trigonellina"
*"Trigonirhynchella"
*"Trigonirhynchia"
*"Trigonirhynchioides"
*"Trigonithyris"
*"Trigonoglossa"
*"Trigonosemus"
*"Trigonospirifer"
*"Trigonotreta"
*"Trigonotrophia"
*"Trigrammaria"
*"Trilobostrophia"
*"Trimerella"
*"Trimurellina"
*"Triplesia"
*"Triseptata"
*"Triseptothyris"
*"Tritoechia"
*"Trochalocyrtina"
*"Trochifera"
*"Trondorthis"
*"Tropeothyris"
*"Trophisina"
*"Tropidelasma"
*"Tropidoglossa"
*"Tropidoleptus"
*"Tropidothyris"
*"Trotlandella"
*"Trucizetina"
*"Truncalosia"
*"Truncatenia"
*"Tschatkalia"
*"Tschernyschewia"
*"Tscherskidium"
*"Tshemsarythyris"
*"Tubaria"
*"Tubegatanella"
*"Tuberella"
*"Tubersulculatella"
*"Tubersulculus"
*"Tubithyris"
*"Tubulostrophia"
*"Tudiaophomena"
*"Tulathyris"
*"Tulcumbella"
*"Tulipina"
*"Tuloja"
*"Tulungospirifer"
*"Tumarinia"
*"Tunethyris"
*"Tungussotoechia"
*"Tunisiglossa"
*"Tuotalania"
*"Turarella"
*"Turganiella"
*"Turgenostrophia"
*"Turkmenithyris"
*"Turriculum"
*"Tuvaechonetes"
*"Tuvaella"
*"Tuvaerhynchus"
*"Tuvaestrophia"
*"Tuvinia"
*"Twenhofelia"
*"Tyersella"
*"Tylambonites"
*"Tyloplecta"
*"Tylospiriferina"
*"Tylothyris"
*"Tyrganiella"
*"Tyronella"
*"Tyryrhynchus"

U

*"Uchtella"
*"Uchtospirifer"
*"Uexothyris"
*"Ufonicoelia"
*"Ujandinella"
*"Ujukites"
*"Ukoa"
*"Ulbospirifer"
*"Uldziathyris"
*"Umboanctus"
*"Uncinella"
*"Uncinulus"
*"Uncinunellina"
*"Uncisteges"
*"Uncites"
*"Uncitispira"
*"Undaria"
*"Undatrypa"
*"Undelella"
*"Undellaria"
*"Undiferina"
*"Undispirifer"
*"Undispiriferoides"
*"Undithyrella"
*"Undulella"
*"Undulorhyncha"
*"Uniplicatorhynchia"
*"Unispirifer"
*"Uralella"
*"Uraloconchus"
*"Uraloproductus"
*"Uralorhynchia"
*"Uralospira"
*"Uralospirifer"
*"Uralotoechia"
*"Urbanirhynchia"
*"Urella"
*"Urushtenia"
*"Urushtenoidea"
*"Ushkolia"
*"Ussunia"
*"Ussuricamara"
*"Ussurichonetes"
*"Ussurirhynchia"

V

*"Vaculina"
*"Vadimia"
*"Vadum"
*"Vaga" Sapel'nikov & Rukavishnikova 1973 [The name is preoccupied by "Vaga", a butterfly genus. "Vage" may be a possible replacement name.]
*"Vagranella"
*"Vagrania"
*"Valcourea"
*"Valdaria"
*"Vallomyonia"
*"Vandalotreta"
*"Vandercammenina"
*"Vandobiella"
*"Vaniella"
*"Variatrypa"
*"Vectella"
*"Vediproductus"
*"Veerersalosia"
*"Veghirhynchia"
*"Veliseptum"
*"Vellamo"
*"Velostrophia"
*"Venezuelia"
*"Verchojania"
*"Verkhotomia"
*"Vermiculothecidea"
*"Verneuilia"
*"Vex"
*"Viallithyris"
*"Viarhynchia"
*"Victorithyris"
*"Viligella"
*"Viligothyris"
*"Villicundella"
*"Vincentirhynchia"
*"Viodostrophia"
*"Virbium"
*"Virgiana"
*"Virgianella"
*"Virginiata"
*"Virgoria"
*"Visbyella"
*"Vitiliproductus"
*"Vitimetula"
*"Vladimirella"
*"Vladimirirhynchus"
*"Voiseyella"
*"Volborthia"
*"Volgathyris"
*"Volirhynchia"
*"Voskopitoechia"
*"Vosmiverstum"

W

*"Waagenites"
*"Waagenoconcha"
*"Waconella"
*"Wadiglossa"
*"Waikatorhynchia"
*"Waiparia"
*"Wairakiella"
*"Wairakirhynchia"
*"Waisiuthyrina"
*"Walcottina"
*"Walkerithyris"
*"Waltonia"
*"Wangyuia"
*"Wardakia"
*"Warrenella"
*"Warrenellina"
*"Warsawia"
*"Waterhouseiella"
*"Wattonithyris"
*"Webbyspira"
*"Weberithyris"
*"Weibeia"
*"Weiningia"
*"Weizhouella"
*"Weldonithyris"
*"Wellerella"
*"Wenxianirhynchus"
*"Werneckeella"
*"Werriea"
*"Westbroekina"
*"Westonia"
*"Westonisca"
*"Westralicrania"
*"Whidbornella"
*"Whitfieldella"
*"Whitspakia"
*"Whittardia"
*"Wilberrya"
*"Wilsoniella"
*"Wimanella"
*"Wimanoconcha"
*"Wiradjuriella"
*"Wittenburgella"
*"Worobievella"
*"Wulongella"
*"Wulungguia"
*"Wutubulakia"
*"Wyatkina"
*"Wyella"
*"Wyndhamia"
*"Wynnia"
*"Wysogorskiella"

X

*"Xana"
*"Xanthea"
*"Xenambonites"
*"Xenelasma"
*"Xenelasmella"
*"Xenelasmopsis"
*"Xeniopugnax"
*"Xenizostrophia"
*"Xenocryptonella"
*"Xenomartinia"
*"Xenorina"
*"Xenorthis"
*"Xenosaria"
*"Xenosteges"
*"Xenostina"
*"Xenostrophia"
*"Xenothyris"
*"Xerospirifer"
*"Xerxespirifer"
*"Xestosia"
*"Xestosina"
*"Xestotrema"
*"Xiangzhounia"
*"Xiaobangdaia"
*"Xinanorthis"
*"Xinanospirifer"
*"Xinjiangiproductus"
*"Xinjiangospirifer"
*"Xinjiangthyris"
*"Xinshaoella"
*"Xinshaoproductus"
*"Xizangostrophia"
*"Xysila"
*"Xystostrophia"

Y

*"Yabeithyris"
*"Yagonia"
*"Yakovlevia"
*"Yakutijaella"
*"Yalongia"
*"Yanbianella"
*"Yanetechia"
*"Yangkongia"
*"Yangtzeella"
*"Yanguania"
*"Yanishewskiella"
*"Yanospira"
*"Yaonoiella"
*"Yarirhynchia"
*"Yekerpene"
*"Yeosinella"
*"Yeothyris"
*"Ygerodiscus"
*"Yichangorthis"
*"Yidunella"
*"Yidurella"
*"Yingwuspirifer"
*"Yochelsonia"
*"Yongjia"
*"Yorkia"
*"Ypsilorhynchus"
*"Yuanbaella"
*"Yuezhuella"
*"Yukiangites"
*"Yulongella"
*"Yunnanella"
*"Yunnanoleptaena"
*"Yunshanella"

Z

*"Zaissania"
*"Zanclorhyncha"
*"Zdimir"
*"Zdimirella"
*"Zeilleria"
*"Zeillerina"
*"Zellania"
*"Zeravshania"
*"Zeravshanotoechia"
*"Zeugopleura"
*"Zeuschneria"
*"Zhantella"
*"Zhejiangella"
*"Zhejiangorthis"
*"Zhejiangospirifer"
*"Zhenania"
*"Zhexichonetes"
*"Zhidothyris"
*"Zhonghuacoelia"
*"Zhongpingia"
*"Zia"
*"Ziganella"
*"Zilimia"
*"Zittelina"
*"Zlichopyramis"
*"Zlichorhynchus"
*"Zonathyris"
*"Zophostrophia"
*"Zugmayerella"
*"Zugmayeria"
*"Zygatrypa"
*"Zygospira"
*"Zygospirella"

Footnotes