Traits Taxon list
Abyssorhynchia craneana (Dall, 1895)
Abyssothyris briggsi Cooper, 1978 †
Abyssothyris wyvillei (Davidson, 1878)
Acanthalosia deari (Briggs, 1998) †
Acanthalosia domina Waterhouse, 1986 †
Acanthalosia mcclungi (Briggs, 1998) †
Acanthalosia mysteriosa Waterhouse, 2010 †
Acanthobasiliola doederleini (Davidson, 1886)
Acrobelesia cooperi (d'Hondt, 1976)
Acrobrochus aldingi (Tate, 1880) †
Acrobrochus blochmanni (Jackson, 1912)
Acrobrochus marotiriensis Bitner, 2007
Acrobrochus tateana (Tenison-Woods, 1878) †
Acrobrochus vema (Cooper, 1973)
Adnatida deformis (Tate, 1880) †
Adnatida gnangarensis Richardson, 1991 †
Adolfia solita Ljaschenko, 1959 †
Adolfispirifer jeremejewi (Tschernyschew, 1887) †
Adolfispirifer sanjuanensis Savage & Baxter, 1995 †
Aegiria norvegica Öpik, 1933 †
Aemula inusitata Steinich, 1968 †
Aenigmathyris stearnsi Cooper, 1971 †
Aerothyris kerguelensis (Davidson, 1878)
Aerothyris macquariensis (Thomson, 1918)
Aetheia gualteri (Morris, 1850) †
Agulhasia davidsoni King, 1871
Agulhasia densicostata Cooper, 1988 †
Ahtiella dalecarlica Hessland, 1949 †
Ahtiella jaanussoni Hessland, 1949 †
Ahtiella oelandica Hessland, 1949 †
Ahtiella plana Hessland, 1949 †
Airtonia hudsoni Cope, 1934 †
Alabushevothyris angusta Smirnova, 1994 †
Alaskothyris frosti Blodgett, Baranov & Santucci, 2015 †
Aldingia furculifera (Tate, 1880) †
Aldingia willemoesi (Davidson, 1878)
Alekseevathyris coronadosensis Baranov & Blodgett, 2018 †
Aliquantula insolita (Tate, 1880) †
Aliquantula tapirina (Hutton, 1873) †
Alispirifer contractus Maxwell, 1964 †
Alispirifer laminosus Campbell, 1961 †
Alispirifer laminosus undatus Campbell, 1961 †
Alispirifer tamaulipensis Sour-Tovar, Álvarez, & Martínez-Chacón, 2005 †
Alispirifer transversus Maxwell, 1964 †
Alkhovikovia importuna Baranov, 2007 †
Alkhovikovia libera Baranov, 2007 †
Allorhynchus scientiana Torres-Martínez & Sour-Tovar, 2022 †
Alocorthis psygmatelos Paterson & Brock, 2003 †
Alwynella ildjernensis Spjeldnæs, 1957 †
Alwynella intermedia Spjeldnæs, 1957 †
Alwynella osloensis Spjeldnæs, 1957 †
Amazonoproductus amazonensis Chen, Tazawa, Shi & Matsuda, 2004 †
Ambikella elongata (McClung & Armstrong, 1975) †
Amphipella arcaria Cooper & Grant, 1969 †
Amphipella attenuata Cooper & Grant, 1976 †
Amphithyris buckmani Thomson, 1918
Amphithyris cavernicola Nauendorf, Wörheide & Lüter, 2014
Amphithyris comitodentis Nauendorf, Wörheide & Lüter, 2014
Amphithyris hallettensis Foster, 1974
Amphithyris parva Mackinnon, Hiller, Long & Marshall, 2008
Amphithyris richardsonae Campbell & Fleming, 1981
Amphithyris seminula (Philippi, 1836)
Anakinetica breva Richardson, 1991 †
Anakinetica compta (Sowerby, 1845) †
Anakinetica cumingi (Davidson, 1852)
Anakinetica recta Richardson, 1991 †
Anakinetica tumida Richardson, 1991 †
Anastrophia magnifica Kozlowski, 1929 †
Anastrophia magnifica australis Savage, 1971 †
Ancorellina ageri Mancenido & Damborenea, 1991 †
Andronovia geremgandzhensis Baranov & Blodgett, 2022 †
Aneboconcha obscura Cooper, 1973
Aneboconcha smithii (Pfeffer, 1886)
Anemonaria mitis (Hill, 1950) †
Angustothyris dagysi Guo, Chen, & Harper, 2019 †
Angustothyris qingyanensis Guo, Chen, & Harper, 2019 †
Anisopleurella anceps Mitchell, 1977 †
Anisopleurella tricostellata Cooper, 1956 †
Annuloplatidia annulata (Atkins, 1959)
Annuloplatidia curiosa Bitner, 2014
Annuloplatidia horni (Gabb, 1861)
Annuloplatidia indopacifica Zezina, 1981
Annuloplatidia richeri Bitner, 2009
Anomalorthis rossi Hansen & Holmer, 2011 †
Anomalorthis utahensis Ulrich & Cooper, 1936 †
Anoptambonites williamsi Cocks, 2005 †
Anthracospirifer birdspringensis Lane, 1963 †
Anthracospirifer curvilateralis (Easton, 1962) †
Anthracospirifer curvilateralis chavezae Sutherland & Harlow, 1973 †
Anthracospirifer curvilateralis tanoensis Sutherland & Harlow, 1973 †
Anthracospirifer mcalesteri Sutherland & Harlow, 1973 †
Anthracospirifer newberryi Sutherland & Harlow, 1973 †
Anthracospirifer oaxacaensis Torres-Martínez & Sour-Tovar, 2022 †
Aperispirifer wairakiensis (Waterhouse, 1964) †
Aphaurorhynchia iniquitas (Waterhouse, 1967) †
Aphelesia bipartita (Brocchi, 1814) †
Aphelesia winebergeri Bitner & Schneider, 2009 †
Apopentamerus clarkei Strusz, 2011 †
Aporthophyla sinensis Jia-Yu, Harper, Ren-Bin, You-Zhuang & Jin-Hui, 2005 †
Aporthophyla typa Ulrich & Cooper, 1936 †