Apsidoceratidae Hyatt, 1884 † (taxonomy source)
Ascoceratidae Barrande, 1867 † (additional source)
Ascocerida † represented as Ascoceratida † (basis of record)
Beloitoceras Foerste, 1924 † (additional source)
Beloitoceras estonicum Teichert, 1930 † accepted as Richardsonoceras priscum (Eichwald, 1860) † (source of synonymy)
Beloitoceras heterocurvatum Strand, 1934 † accepted as Beloitoceras sinuososeptatum (Roemer, 1861) † (source of synonymy)
Beloitoceras siljanense Frye, 1987 † (basis of record)
Beloitoceras sinuososeptatum (Roemer, 1861) † (basis of record)
Beloitoceras uuemoisense Kröger, 2025 † (original description)
Cameroceras Conrad, 1842 † (basis of record)
Cameroceras hasta (Eichwald, 1857) † (basis of record)
Cameroceras regulus (Eichwald, 1857) † (basis of record)
Charactoceras Foerste, 1924 † (basis of record)
Charactoceras estonicum Strand, 1934 † (toxicology source)
Cyrtogomphoceras Foerste, 1924 † (basis of record)
Cyrtogomphoceras troedssoni Teichert, 1930 † (basis of record)
Cyrtogomphoceratidae Flower, 1940 † (additional source)
Cyrtorizoceras hariense Kröger, 2025 † (original description)
Dalecarlioceras Frye, 1987 † (basis of record)
Dalecarlioceras bodense Frye, 1987 † (basis of record)
Dalecarlioceras constrictum Frye, 1987 † (basis of record)
Danoceras Troedsson, 1926 † (additional source)
Danoceras breve Strand, 1934 † (basis of record)
Danoceras fusiforme Balashov, 1959 † (basis of record)
Danoceras oviforme Kröger, 2025 † (original description)
Danoceras piersalense (Teichert, 1930) † (basis of record)
Danoceras vohilaidense Kröger, 2025 † (original description)
Dawsonoceras Hyatt, 1884 † (status source)
Dawsonoceras stumburi Kröger, 2013 † accepted as Gorbyoceras stumburi (Kröger, 2013) † (new combination reference)
Dawsonoceratidae Flower, 1962 † (basis of record)
Deckeroceras Foerste, 1935 † (basis of record)
Deckeroceras balticum Kröger, 2025 † (original description)
Diestoceras Foerste, 1924 † (additional source)
Diestoceras breviconum (Portlock, 1843) † (basis of record)
Diestoceras stensioei (Troedsson, 1926) † (basis of record)
Diestoceratidae Foerste, 1926 † (additional source)
Discoceras Barrande, 1867 † (taxonomy source)
Discoceras antiquissimum (Eichwald, 1842) † (basis of record)
Discoceras boreale Sweet, 1958 † (basis of record)
Discoceras hyatti Strand, 1934 † accepted as Discoceras saemanni (Hyatt, 1894) † (source of synonymy)
Discoceras paopense Kröger, 2025 † (original description)
Discoceras roemeri Strand, 1934 † (basis of record)
Discoceras saemanni (Hyatt, 1894) † (basis of record)
Dowlingoceras Foerste, 1928 † (additional source)
Dowlingoceras gracile (Whiteaves, 1892) † (basis of record)
Dowlingoceras kallholnense Frye, 1987 † (basis of record)
Dowlingoceras piersalense Teichert, 1930 † accepted as Danoceras piersalense (Teichert, 1930) † (new combination reference)
Dowlingoceras tornense Kröger, 2025 † (original description)
Endoceras magnum Stumbur, 1956 † accepted as Cameroceras hasta (Eichwald, 1857) † (source of synonymy)
Endoceras megastoma (Eichwald, 1857) † accepted as Cameroceras hasta (Eichwald, 1857) † (source of synonymy)
Endoceras novamagnum Greenfield, 2023 † accepted as Cameroceras hasta (Eichwald, 1857) † (source of synonymy)
Ephippiorthoceras wormsiense Kroger, 2025 † (original description)
Gorbormoceras Kröger, 2025 † (original description)
Gorbormoceras vohilaidense Kröger, 2025 † (original description)
Gorbyoceras Shimizu & Obata, 1935 † (basis of record)
Gorbyoceras clathratoannulatum (Roemer, 1861) † (basis of record)
Gorbyoceras stumburi (Kröger, 2013) † (basis of record)
Gorbyoceras textumaraneum (Roemer, 1861) † (basis of record)
Graciloceratidae Flower, 1950 † (basis of record)
Hiiumoceras Kröger, 2025 † (original description)
Hiiumoceras hiiuense Kröger, 2025 † (original description)
Hosholmoceras Kröger, 2025 † (original description)
Hosholmoceras ovalis Kröger, 2025 † (original description)
Hosholmoceras triangulatum Kröger, 2025 † (original description)
Isorthoceras Flower, 1962 † (basis of record)
Isorthoceras dalecarlense Kröger, Ebbestad, Högström & Frisk, 2011 † accepted as Isorthoceras luhai (Stumbur, 1956) † (source of synonymy)
Isorthoceras luhai (Stumbur, 1956) † (basis of record)
Isorthoceras saaremense (Balashov, 1959) † (basis of record)
Kallholnoceras Frye, 1987 † (basis of record)
Kiaeroceras frognoyense Strand, 1934 † (basis of record)
Kiaeroceras kaebliki Kröger, 2025 † (original description)
Kiaeroceras ormsoense Kröger, 2025 † (original description)
Kiaeroceras urgense Kröger, 2025 † (original description)
Lyckholmoceras Teichert, 1930 † (basis of record)
Lyckholmoceras norvegiae Strand, 1934 † (basis of record)
Michelinoceras dnestrovense Balashov, 1975 † accepted as Isorthoceras luhai (Stumbur, 1956) † (source of synonymy)
Nybyoceras Troedsson, 1926 † (additional source)
Nybyoceras bekkeri (Troedsson, 1926) † (basis of record)
Nybyoceras intermedium Teichert, 1930 † (basis of record)
Ormoceras Stokes, 1840 † (additional source)
Ormoceras heckeri Teichert, 1930 † (basis of record)
Ormoceratidae Saemann, 1853 † (additional source)
Palaeodawsonocerina Kröger & Isakar, 2006 † (basis of record)
Palaeodawsonocerina senckenbergi (Teichert, 1930) † (basis of record)
Piersaloceras Teichert, 1930 † (basis of record)
Piersaloceras gageli Teichert, 1930 † (basis of record)
Pleurorthoceras Flower, 1962 † (basis of record)
Pleurorthoceras osmundsbergense Kröger, 2013 † (basis of record)
Probillingsitidae Flower, 1941 † (basis of record)
Proteoceratidae Flower, 1962 † (basis of record)
Rectanguloceras balaschovi (Stumbur, 1956) † accepted as Discoceras roemeri Strand, 1934 † (source of synonymy)
Redpathoceras Flower, 1963 † (basis of record)
Redpathoceras saxbyense Kröger, 2025 † (original description)
Richardsonoceras Foerste, 1933 † (status source)
Richardsonoceras nikiforovae Balashov, 1962 † accepted as Richardsonoceras priscum (Eichwald, 1860) † (source of synonymy)
Richardsonoceras priscum (Eichwald, 1860) † (basis of record)
Rizosceras teres Kröger, 2025 † (original description)
Rossicoceras pirguense Balashov, 1968 † accepted as Cameroceras hasta (Eichwald, 1857) † (basis of record)
Saxbyoceras Kröger, 2025 † (original description)
Saxbyoceras kingpooli Kröger, 2025 † (original description)

Estonia for Schroederoceras saemanni Hyatt, 1894 † 
Norway for Schroederoceras saemanni Hyatt, 1894 †