Classification of the family Polyptychitidae
Fm. †Polyptychitidae Wedekind 1918
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Subfm. †Craspeditinae Spath 1934
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G. †Craspedites
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Subg. †Craspedites (Craspedites) Pavlow 1892
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†Craspedites (Craspedites) praeokensis Rogov et al. 2017
Subg. †Craspedites (Kachpurites) Spath 1924
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†Kachpurites cheremkhensis Mitta et al. 1999
†Kachpurites evolutus Rogov et al. 2017
†Kachpurites involutus Rogov 2017
†Kachpurites laevis Kiselev and Rogov 2005
†Kachpurites tenuicostatus Rogov et al. 2017
Subg. †Craspedites (Trautscholdiceras) Sasonova 1977
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†Craspedites (Trautscholdiceras) kaschpuricus Trautschold 1861
†Craspedites (Trautscholdiceras) mosquensis Gerasimov 1969
†Craspedites (Trautscholdiceras) parakaschpuricus Gerasimov 1969
†Craspedites (Trautscholdiceras) pseudonodiger Schulgina 1969
†Craspedites (Trautscholdiceras) transitionis Rogov et al. 2017
†Craspedites ivanovi Gerasimov 1960
†Craspedites limitis Burckhardt 1930
†Craspedites pseudofragilis Gerasimov 1960
G. †Platylenticeras Hyatt 1900
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Subg. †Platylenticeras (Tolypeceras) Hyatt 1903
†Platylenticeras gevrilianum d'Orbigny 1840
†Platylenticeras heteropleurum Neumayr and Uhlig 1881
†Platylenticeras pseudograsianum Uhlig 1901
G. †Praetollia
G. †Subcraspedites Spath 1924
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Subg. †Subcraspedites (Subcraspedites) Spath 1924
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†Subcraspedites (Subcraspedites) plicomphalus Sowerby 1823
†Subcraspedites sowerbyi Spath 1952
Subfm. †Polyptychitinae Wedekind 1918
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G. †Dichotomites Koenen 1909
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Subg. †Dichotomites (Dichotomites) Koenen 1909
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†Dichotomites (Dichotomites) bidichotomus d'Orbigny 1841
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Invalid names: Amundiptychites chatangensis Golbert and Klimova 1983 [synonym], Amundiptychites sachsi Golbert and Klimova 1983 [synonym], Dichotomites (Dichotomites) involutus Burdykina 1983 [synonym], Dichotomites (Dichotomites) romani Kemper 1978 [synonym], Dichotomites (Prodichotomites) hollwedensis Kemper 1978 [synonym], Dichotomites mangyschlakensis Luppov 1983 [synonym], Dichotomites toryschensis Luppov 1983 [synonym], Polyptychites frechi Koenen 1902 [synonym], Polyptychites tardescissus Koenen 1902 [synonym], Polyptychites terscissus Koenen 1902 [synonym], Ringnesiceras (Elleficeras) ellefense Kemper and Jeletzky 1979 [synonym]
†Dichotomites (Dichotomites) krausei Kemper 1978
Subg. †Dichotomites (Prodichotomites) Kemper 1971
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†Dichotomites (Prodichotomites) amundensis Kemper and Jeletzky 1979
†Dichotomites (Prodichotomites) crassus Kemper 1978
†Dichotomites (Prodichotomites) ellefensis Kemper and Jeletzky 1979
†Dichotomites (Prodichotomites) flexicosta Koenen 1902
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Invalid names: Neocraspedites speetonensis Spath 1924 [synonym], Polyptychites gradatus Koenen 1902 [synonym]
†Dichotomites (Prodichotomites) mackneyi Alsen 2006
†Dichotomites (Prodichotomites) polytomus Koenen 1902
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Invalid names: Polyptychites ramulosus Koenen 1902 [synonym]
†Prodichotomites complanatus Koenen 1902
†Prodichotomites fissuratus Koenen 1902
†Prodichotomites glaber Jeletzky and Kemper 1988
†Prodichotomites grotriani Neumayr and Uhlig 1881
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Invalid names: Olcostephanus obsoletecostatus Neumayr and Uhlig 1881 [synonym]
†Prodichotomites ivanovi Aristov 1974
†Prodichotomites perovalis Koenen 1902
†Prodichotomites pfaffi Jeletzky and Kemper 1988
†Prodichotomites robustus Jeletzky and Kemper 1988
†Prodichotomites undulatus Koenen 1902
Invalid names: Ringnesiceras Kemper and Jeletzky 1979 [synonym]
†Dichotomites multicostatus Imlay 1940
†Polyptychites (Dichotomites) bidichotomoides Kemper 1978
Invalid names: Ringnesiceras (Elleficeras) Kemper and Jeletzky 1979 [synonym]
G. †Hertleinites Imlay 1958
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†Hertleinites aguila Anderson 1938
†Hertleinites pecki Imlay 1960
Invalid names: Hertleinia Imlay 1957 [replaced]
G. †Polyptychites Pavlow 1892
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Subg. †Polyptychites (Amundiptychites) Kemper and Jeletzky 1979
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†Amundiptychites thorsteinssoni Jeletzky and Kemper 1988
†Polyptychites (Amundiptychites) fasciatus Jeletzky and Kemper 1988
†Polyptychites (Amundiptychites) sphaericus Koenen 1902
†Polyptychites (Amundiptychites) sverdrupi Kemper and Jeletzky 1979
Invalid names: Hollwediceras Jeletzky and Kemper 1988 [synonym]
Subg. †Polyptychites (Astieriptychites) Bodylevsky 1960
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†Astieriptychites obsoletus Jeletzky and Kemper 1988
†Polyptychites (Astieriptychites) astieriformis Voronets 1962
†Polyptychites (Astieriptychites) astieriptychus Voronetz 1958
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Invalid names: Astieriptychites sphaericiformis Gordeev 1971 [synonym], Astieriptychites tenuiptychus Bodylevsky 1960 [synonym], Euryptychites splendens Bodylevsky 1968 [synonym]
Subg. †Polyptychites (Euryptychites) Pavlow 1914
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Subg. †Euryptychites (Euryptychites) Pavlow 1914
†Polyptychites (Euryptychites) copiocostatus Alsen 2006
†Polyptychites (Euryptychites) diplotomus Koenen 1902
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Invalid names: Polyptychites gravidus Koenen 1909 [synonym]
†Polyptychites (Euryptychites) gravesiformis Pavlow 1892
†Polyptychites (Euryptychites) laevis Donovan 1953
†Polyptychites (Euryptychites) latissimus Neumayr and Uhlig 1881
†Polyptychites (Euryptychites) molsbergensis Alsen 2006
†Polyptychites (Euryptychites) pateraeformis Voronets 1962
†Polyptychites (Euryptychites) roemeri Alsen 2006
†Polyptychites (Euryptychites) rubricosus Alsen 2006
†Polyptychites (Euryptychites) subcoronatus Alsen 2006
†Polyptychites (Euryptychites) traillensis Donovan 1953
Invalid names: Bodylevskites [synonym], Neopolyptychites Shulgina 1983 [synonym], Paratollia Casey 1973 [synonym]
Subg. †Polyptychites (Paleodichotomites) Bogomolov 1989
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†Polyptychites (Paleodichotomites) triplodiptychus Pavlow 1892
Subg. †Polyptychites (Polyptychites) Pavlow 1892
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†Polyptychites (Polyptychites) ascendens Koenen 1902
†Polyptychites (Polyptychites) beani Pavlow 1892
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Invalid names: Polyptychites asper Koenen 1909 [synonym], Polyptychites denticulatus Koenen 1909 [synonym], Polyptychites depressus Koenen 1909 [synonym], Polyptychites lahuseni Koenen 1909 [synonym], Polyptychites lessingi Koenen 1909 [synonym], Polyptychites obtusus Koenen 1909 [synonym], Polyptychites stolleyi Koenen 1909 [synonym]
†Polyptychites (Polyptychites) conferticosta Pavlow 1914
†Polyptychites (Polyptychites) keyserlingi Neumayr and Uhlig 1881
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Invalid names: Polyptychites arcuatus Koenen 1909 [synonym], Polyptychites bullatus Koenen 1902 [synonym], Polyptychites coronula Koenen 1909 [synonym], Polyptychites costellatus Koenen 1909 [synonym], Polyptychites inflatus Koenen 1909 [synonym], Polyptychites infundibulum Koenen 1909 [synonym], Polyptychites pyritosus Spath 1924 [synonym], Polyptychites robustus Koenen 1909 [synonym], Polyptychites salchowi Koenen 1909 [synonym], Polyptychites scalarinus Koenen 1909 [synonym], Polyptychites solidus Koenen 1909 [synonym], Polyptychites subgravesi Spath 1924 [synonym], Polyptychites tschernyscheffi Koenen 1909 [synonym]
†Polyptychites (Polyptychites) michalskii Bogoslowsky 1902
†Polyptychites (Polyptychites) plenus Burdykina 1983
†Polyptychites (Polyptychites) polyptychus Keyserling 1846
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Invalid names: Olcostephanus expansus Bogoslovsky 1902 [synonym], Olcostephanus lejanus Bogoslovsky 1902 [synonym], Polyptychites acuticosta Koenen 1909 [synonym], Polyptychites kokeni Koenen 1909 [synonym], Polyptychites laticosta Koenen 1902 [synonym], Polyptychites marginatus Koenen 1909 [synonym], Polyptychites praelatus Koenen 1902 [synonym], Polyptychites pseudopolyptychoides Shulgina 1983 [synonym], Polyptychites rinnei Koenen 1909 [synonym], Polyptychites senilis Koenen 1909 [synonym], Polyptychites sphaeroidalis Koenen 1909 [synonym], Polyptychites spinulosus Koenen 1909 [synonym], Polyptychites suessi Koenen 1909 [synonym], Polyptychites tschekanovskii Pavlov 1914 [synonym], Ringnesiceras (Ringnesiceras) pseudopolyptychum Kemper and Jeletzky 1979 [synonym], Ringnesiceras (Ringnesiceras) tozeri Kemper and Jeletzky 1979 [synonym]
†Polyptychites (Polyptychites) ramulicosta Pavlow 1892
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Invalid names: Polyptychites densicosta Pavlov 1914 [synonym]
†Polyptychites (Polyptychites) rawsoni Alsen 2006
†Polyptychites (Polyptychites) robertsi Alsen 2006
†Polyptychites (Polyptychites) tuberculatus Bogoslowsky 1902
Subg. †Polyptychites (Primitiviptychites) Klimova 1983
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†Polyptychites (Primitiviptychites) rectangulatus Bogoslowsky 1902
Subg. †Polyptychites (Siberiptychites) Kemper and Jeletzky 1977
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†Polyptychites (Siberiptychites) stubendorffi Schmidt 1872
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Invalid names: Polyptychites tscherskii Pavlov 1914 [synonym]
Subg. †Siberiptychites (Pseudoeuryptychites) Jeletzky 1986
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†Siberiptychites (Pseudoeuryptychites) middendorffi Pavlov 1914
†Siberiptychites (Pseudoeuryptychites) pavlovi Voronets 1962
Subg. †Siberiptychites (Siberiptychites) Kemper and Jeletzky 1977
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†Siberiptychites (Siberiptychites) fascicostatus Jeletzky and Kemper 1988
†Polyptychites balkwilli Jeletzky and Kemper 1988
†Polyptychites brancoi Neumayr and Uhlig 1881
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Invalid names: Polyptychites karpinskii Koenen 1909 [synonym], Polyptychites schmidti Koenen 1909 [synonym], Polyptychites stillei Koenen 1909 [synonym]
†Polyptychites canadensis Kemper and Jeletzky 1979
†Polyptychites clarkei Koenen 1909
†Polyptychites hapkei Jeletzky and Kemper 1988
†Polyptychites hesperius Anderson 1938
†Polyptychites hoeli Frebold 1929
†Polyptychites lamplughi Pavlow 1892
†Polyptychites multicostatus Koenen 1909
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Invalid names: Polyptychites compositus Koenen 1909 [synonym], Polyptychites kittli Koenen 1909 [synonym], Polyptychites longelobatus Koenen 1909 [synonym], Polyptychites plicatilis Koenen 1909 [synonym]
†Polyptychites multiplicatus Roemer 1841
†Polyptychites oerlinghusanus Weerth 1884
†Polyptychites orbitatus Koenen 1902
†Polyptychites saxonicus Jeletzky and Kemper 1988
†Polyptychites sublatissimus Spath 1924
†Polyptychites tethyale Jeletzky and Kemper 1988
†Polyptychites traski Gabb 1864
†Polyptychites trichotomus Stanton 1895
†Polyptychites villersensis Baumberger 1908
G. †Siberites
Subfm. †Simbirskitinae Pavlow 1892
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G. †Hollisites Imlay 1957
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†Hollisites dichotomus Imlay 1960
†Hollisites inflatus Imlay 1960
†Hollisites lucasi Imlay 1957
G. †Simbirskites Pavlow 1891
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Subg. †Simbirskites (Craspedodiscus) Spath 1924
†Simbirskites decheni Römer 1841
†Simbirskites lecontei Anderson 1938
†Simbirskites morvenae Whitehouse 1927
Invalid names: Californiceras [synonym]
Subfm. †Tolliinae Spath 1952
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G. †Borealites Klimova 1969
G. †Homolsomites Crickmay 1930
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†Homolsomites mutabilis Stanton 1895
†Homolsomites oregonensis Anderson 1938
†Homolsomites stantoni McLellan 1927
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Invalid names: Homolsomites poecilochotomus Crickmay 1930 [synonym]
G. †Menjaites Sazonova 1971
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Subg. †Menjaites (Menjaites) Sazonova 1971
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†Menjaites (Menjaites) elegans Bodylevsky 1949
†Menjaites (Menjaites) groenlandicus Alsen 2006
†Menjaites (Menjaites) imperceptus Sazonova 1971
Invalid names: Costamenjaites Sazonova 1971 [synonym], Luppoviceras Sazonova 1977 [synonym], Sabydites Bogomolov and Burdykina 1989 [synonym]
G. †Nikitinoceras Sokolov 1913
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Subg. †Nikitinoceras (Nikitinoceras) Solokov 1913
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†Nikitinoceras (Nikitinoceras) hoplitoides Nikitin 1888
†Nikitinoceras (Nikitinoceras) inflatum Bodylevsky 1967
†Nikitinoceras (Nikitinoceras) intermedium Klimova 1984
†Nikitinoceras (Nikitinoceras) mokschensis Bogoslowsky 1902
†Nikitinoceras (Nikitinoceras) variisculptum Pavlow 1914
Subg. †Nikitinoceras (Russanovia) Bodylevsky 1967
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†Nikitinoceras (Russanovia) borealis Bodylevsky 1902
†Nikitinoceras (Russanovia) diptychum Keyserling 1846
†Nikitinoceras (Russanovia) euriptychoides Klimova 1984
†Nikitinoceras (Russanovia) syzranicum Pavlow and Lamplugh 1892
†Nikitinoceras (Russanovia) triptychiformis Nikitin 1888
Invalid names: Temnoptychites Pavlow 1914 [synonym]
G. †Peregrinoceras Sazonova 1971
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†Peregrinoceras albidum Casey 1973
†Peregrinoceras pressulus Bogoslowsky 1897
G. †Surites Sazonov 1951
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Subg. †Surites (Bojarkia) Shulgina 1969
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†Surites (Bojarkia) mesezhnikowi Shulgina 1969
†Surites (Bojarkia) stenomphalus Pavlow 1890
†Surites (Bojarkia) tealli Casey 1973
Subg. †Surites (Surites) Sazonov 1951
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†Surites (Surites) analogus Bogoslowsky 1897
†Surites (Surites) pechorensis Sazonov 1951
†Surites (Surites) simplex Bogoslowsky 1902
G. †Tollia Pavlow 1914
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Subg. †Tollia (Neocraspedites) Spath 1923
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†Neocraspedites giganteus Imlay 1960
†Tollia (Neocraspedites) greenlandica Donovvan 1953
†Tollia (Neocraspedites) pentagonalis Alsen 2006
†Tollia (Neocraspedites) piaseckii Alsen 2006
†Tollia (Neocraspedites) rutila Alsen 2006
†Tollia (Neocraspedites) semilaevis Koenen 1902
†Tollia (Neocraspedites) semisulcata Koenen 1902
†Tollia (Neocraspedites) undulatocostata Donovan 1953
†Tollia mutabilis Stanton 1895
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Invalid names: Dichotomites burgeri Anderson 1938 [synonym], Dichotomites gregerseni Anderson 1938 [synonym], Dichotomites tehamaensis Anderson 1938 [synonym]
Invalid names: Neotollia [synonym]
G. †Virgatoptychites Voronets 1958
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Subg. †Virgatoptychites (Propolyptychites) Kemper 1964
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†Euryptychites (Propolyptychites) arcticus Shulgina 1983
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Invalid names: Neopolyptychites klimovae Shulgina 1983 [synonym]
†Euryptychites (Propolyptychites) globulosus Koenen 1909
†Propolyptychites bentheimensis Kemper 1976
†Virgatoptychites (Propolyptychites) pumilio Vogel 1959
†Virgatoptychites (Propolyptychites) quadrifidus Koenen 1902
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Invalid names: Neopolyptychites asiaticus Shulgina 1983 [synonym], Neopolyptychites bassovi Shulgina 1983 [synonym], Neopolyptychites pachsensis Shulgina 1983 [synonym], Paratollia emslandensis Kemper 1964 [synonym], Polyptychites sinzowi Koenen 1909 [synonym]
†Virgatoptychites (Propolyptychites) tenuicostatus Kemper 1968
†Virgatoptychites changalassensis Voronets 1958