• Aaleniella variata M. A. Conti & J. C. Fischer, 1981 †: Aalenian
• Acanthopora haimei Etallon, 1859 †: Jurassic
• Acanthopora lamourouxi Haime, 1854 †: Jurassic
• Acesta brycei Marwick, 1953 †: Kimmeridgian
• Acesta brycei Marwick, 1953 †: Oxfordian
• Acesta brycei Marwick, 1953 †: Callovian
• Acesta brycei Marwick, 1953 †: Bathonian
• Acesta brycei Marwick, 1953 †: Bajocian
• Acesta brycei Marwick, 1953 †: Aalenian
• Acrocidaris borissiaki Weber, 1934 †: Jurassic, Upper
• Acrocidaris cazioti Lambert, 1926 †: Tithonian
• Acrocidaris crenulata Mercier, 1935 †: Bajocian
• Acrocidaris nicolleaui Vadet & Nicolleau, 2000 †: Callovian
• Acrosalenia arabica Kier, 1972a †: Bathonian
• Acrosalenia basseae Lambert, 1936 †: Callovian
• Acrosalenia bowersi Kier, 1972a †: Callovian
• Acrosalenia dhrumaensis Kier, 1972a †: Bathonian
• Acrosalenia gananensis Stefanini, 1931 †: Jurassic, Middle
• Acrosalenia marratensis Kier, 1972a †: Toarcian
• Acrosalenia mathildae Lambert, 1935 †: Callovian
• Acrosalenia microstoma Besairie, 1936 †: Bathonian
• Acrosalenia mideltensis Vadet, Nicolleau & Reboul, 2010 †: Bajocian
• Acrosalenia smelliei Currie, 1925 †: Bathonian
• Acrosalenia somaliensis Currie, 1925 †: Jurassic, Lower
• Acrosalenia termieri Lambert, 1931 †: Bajocian
• Acrosalenia wylliei Currie, 1925 †: Bathonian
• Acrosalenia zararensis Lambert, 1937 †: Pliensbachian
• Acteonina novozealandica Bandel, Gründel & P. A. Maxwell, 2000 †: Callovian
• Acteonina novozealandica Bandel, Gründel & P. A. Maxwell, 2000 †: Bathonian
• Acteonina novozealandica Bandel, Gründel & P. A. Maxwell, 2000 †: Bajocian
• Acteonina novozealandica Bandel, Gründel & P. A. Maxwell, 2000 †: Aalenian
• Acteonina novozealandica Bandel, Gründel & P. A. Maxwell, 2000 †: Toarcian
• Acteonina novozealandica Bandel, Gründel & P. A. Maxwell, 2000 †: Pliensbachian
• Actinopora bowerbanki (Haime, 1854) †: Aalenian
• Acuneopsis luochengensis X.-Z. Liu & G.-X. Zhu, 1978 †: Sinemurian
• Acuneopsis ovalis X.-Z. Liu & G.-X. Zhu, 1978 †: Sinemurian
• Acuneopsis xinanensis X.-Z. Liu & G.-X. Zhu, 1978 †: Sinemurian
• Acyrena ferganensis (B. I. Chernyshev, 1937) †: Jurassic, Middle
• Acyrena jenissejensis Lebedev, 1958 †: Bathonian
• Acyrena jenissejensis Lebedev, 1958 †: Bajocian
• Acyrena khadjakalanensis (B. I. Chernyshev, 1937) †: Jurassic, Middle
• Acyrena murtinensis Lebedev, 1958 †: Bathonian
• Acyrena rhomboidea Lebedev, 1959 †: Bathonian
• Acyrena subacuminata (B. I. Chernyshev, 1937) †: Jurassic, Middle
• Acyrena tetragonalis Lebedev, 1958 †: Bathonian
• Acyrena xinheensis Q.-H. Ma, 1988 †: Jurassic, Middle
• Adeorbisina canavarii Greco, 1899 †: Jurassic
• Agerchlamys boellingi D. G. Taylor & Guex, 2002 †: Hettangian
• Agerchlamys wunschae (Marwick, 1953) †: Toarcian
• Agerchlamys wunschae (Marwick, 1953) †: Pliensbachian
• Alternacantha arges Thuy, 2013 †: Oxfordian
• Alternacantha dilionessa Thuy, 2013 †: Kimmeridgian
• Alternacantha occulta Thuy & Meyer, 2012 †: Bajocian
• Alternacantha schwermannorum Thuy, 2013 †: Oxfordian
• Amberleya aureliana Cossmann, 1900 †: Bathonian
• Amberleya coxi J.-C. Fischer, 1964 †: Bathonian
• Amberleya dilleri Stanton, 1895 †: Tithonian
• Amberleya piettei Cossmann, 1885 †: Bathonian
• Amberleya torosa Marwick, 1953 †: Sinemurian
• Amberleya torosa Marwick, 1953 †: Hettangian
• Amberleya zealandica Trechmann, 1923 †: Callovian
• Amberleya zealandica Trechmann, 1923 †: Bathonian
• Amberleya zealandica Trechmann, 1923 †: Bajocian
• Amberleya zealandica Trechmann, 1923 †: Aalenian
• Amiodon hepingxiangensis Q.-H. Ma, 1976 †: Jurassic, Middle
• Amiodon jingguensis Q.-H. Ma, 1976 †: Jurassic, Middle
• Amiodon yongpingensis Q.-H. Ma, 1976 †: Jurassic, Middle
• Amnicola kushuixiaensis H.-Z. Pan, 1982 †: Jurassic, Middle
• Amnicola kushuixiaensis H.-Z. Pan, 1982 †: Toarcian
• Amnicola lufengensis H.-Z. Pan, 1977 †: Jurassic, Middle
• Amnicola mimalongensis H.-Z. Pan, 1977 †: Jurassic, Middle
• Amnicola obsoleta H.-Z. Pan, 1977 †: Jurassic, Middle
• Amnicola shuidonggouensis H.-Z. Pan, 1982 †: Jurassic, Middle
• Amnicola yangbiensis H.-Z. Pan, 1977 †: Jurassic, Middle
• Amnicola yunnanensis H.-Z. Pan, 1977 †: Jurassic, Middle
• Amnicola zhejingensis H.-Z. Pan, 1980 †: Jurassic, Middle
• Amnicola zigongensis H.-Z. Pan, 1984 †: Toarcian
• Amphitrochus muensteri Gründel, Keupp & F. Lang, 2017 †: Kimmeridgian
• Amplovalvata antiqua H.-Z. Pan, 1980 †: Jurassic, Middle
• Amplovalvata cyclostoma Yen, 1952 †: Tithonian
• Amplovalvata cyclostoma Yen, 1952 †: Kimmeridgian
• Amplovalvata deformis H.-Z. Pan, 1980 †: Jurassic, Middle
• Amplovalvata jingguensis H.-Z. Pan, 1977 †: Jurassic, Middle
• Amplovalvata mansueta H.-Z. Pan, 1984 †: Sinemurian
• Amplovalvata obliqua H.-Z. Pan, 1982 †: Jurassic, Middle
• Amplovalvata valareslebensis Huckriede, 1967 †: Kimmeridgian
• Ampullospira canaliculata (J. Morris & Lycett, 1851) †: Bajocian
• Ampullospira canaliculata (J. Morris & Lycett, 1851) †: Aalenian
• Ampullospira coxi J.-C. Fischer, 1953 †: Bathonian
• Ampullospira curta (A. d'Orbigny, 1850) †: Aalenian
• Ampullospira remigiensis (Buvignier, 1852) †: Oxfordian
• Ampullospira rumignyensis J.-C. Fischer, 1953 †: Bathonian
• Anaulocidaris tuberculata Mortensen, 1937 †: Jurassic, Upper
• Ancylocidaris spenceri Miller, 1929 †: Jurassic, Upper
• Angaridella belachtensis C. M. Kolesnikov, 1980 †: Bathonian
• Anodonta biltoni F. R. Woodward, 1964 †: Jurassic, Middle
• Anradulonectites anabarensis Shurygin & Lutikov, 1991 †: Pliensbachian
• Anradulonectites incertus Shurygin & Lutikov, 1991 †: Pliensbachian
• Anradulonectites intricatus Shurygin & Lutikov, 1991 †: Jurassic, Lower
• Antaganides fournieri Branger, 2024 †: Bathonian