PBDB Taxon

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Chondrichthyes (cartilaginous fish)

Chondrichthyes

Taxonomy

Chondrichthyes was named by Huxley (1880). It is extant.

It was assigned to Vertebrata by Huxley (1880); to Chondrichthiomorphi by Long (2011); to Chordata by Squires (1984), Barnes (1998), Sepkoski (2002) and Fourriére et al. (2014); to Chondrichthyomorphi by Nelson et al. (2016); and to Gnathostomata by Young (1997), Dineley and Metcalf (1999), Meyer and Zardoya (2003) and Richter et al. (2017).

Subtaxa

Acanthodii, Bradyodontida, Cladoselachimorpha, Clamydoselachidae, Ctenacanthimorpha, Ctenoptychius ordii, Desmiodontida, Doliodus, Duplisuggestus, Elasmobranchii, Elegestolepis, Eucentrurus, Fasciodus, Geisacanthus, Gladbachus, Gogoselachus, Gracilisuggestus, Holocephali (syn. Euchondrocephali, Bradyodonti), Holocephalimorpha, Iniopterygia, Kathemacanthidae, Leonotus, Machichnus, Mongolepidida, Obtusacanthus, Plesioselachus, Polymerolepidiformes, Proprigalea, Ptomacanthus, Pucapampellidae, Pucapumpella, Qianodus, Rhinobatiformes, Shenacanthus, Simmorius, Sinacanthida, Subterbranchialia, Thaumatacanthus, Yuanolepis

Synonyms

Ctenoptychius ordii was named by Davis (1881). It is a 3D body fossil. Its type locality is Aust Cliff bone bed (Ord coll, Bristol), which is in a Rhaetian coastal conglomerate in the Westbury Formation of the United Kingdom.

It was considered a nomen dubium by Woodward (1889).

Synonymy list

Year	Name and author
1880	Chondrichthyes Huxley p. 660
1881	Ctenoptychius ordii Davis p. 422 figs. Pl. 22:8
1984	Chondrichthyes Squires p. 56
1997	Chondrichthyes Young p. 11
1998	Chondrichthyes Barnes
1999	Chondrichthyes Dineley and Metcalf p. 11
2002	Chondrichthyes Sepkoski
2003	Chondrichthyes Meyer and Zardoya
2011	Chondrichthyes Long p. 242
2014	Chondrichthyes Fourriére et al. p. 380 figs. Table 1
2016	Chondrichthyes Nelson et al. p. 40
2017	Chondrichthyes Richter et al. p. 110

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Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Deuterostomia
phylum	Chordata	Haeckel 1874

Rank	Name	Author
subphylum	Vertebrata
superclass	Gnathostomata
class	Chondrichthyes
class	Chondrichthyes

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

Cl. Chondrichthyes Huxley 1880 [cartilaginous fish]

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Subcl. †Acanthodii Owen 1846 [spiny fish]

Or. †Acanthodiformes Berg 1940

Fm. †Acanthodidae Huxley 1861

G. †Acanthodes Agassiz 1833

†Acanthodes australis Woodward 1906

†Acanthodes beecheri Eastman 1902

†Acanthodes bourbonensis Heidtke 1996

†Acanthodes boyi Heidtke 1993

†Acanthodes bridgei Zidek 1976

†Acanthodes bronni Agassiz 1833

†Acanthodes confusus Heidtke 2011

†Acanthodes gracilis Beyrich 1949

†Acanthodes guizhouensis Wang and Turner 1985

†Acanthodes lopatini Rohon 1889

Invalid names: Homalacanthus bergi Obruchev 1962 [synonym]

†Acanthodes marshi Eastman 1902

†Acanthodes mitchelli Egerton 1861

†Acanthodes nitidus Woodward 1891

†Acanthodes ovensis White 1927

†Acanthodes peachi Egerton 1861

†Acanthodes pollichiae Heidtke 2011

†Acanthodes punctatus Fritsch 1893

†Acanthodes pusillus Agassiz 1844

†Acanthodes pygmaeus Fritsch 1875

†Acanthodes rouvillei Sauvage 1883

†Acanthodes splendidus Heidtke 2011

†Acanthodes sulcatus Agassiz 1835

†Acanthodes ultimus Heidtke 2011

†Acanthodes wardi Egerton 1866

G. †Carycinacanthus Miles 1966

†Carycinacanthus lopatini Rohon 1889

G. †Cheiracanthus Agassiz 1835

†Cheiracanthus brevicostatus Gross 1973

†Cheiracanthus grandispinus Mcoy 1848

†Cheiracanthus latus Egerton 1861

†Cheiracanthus longicostatus Gross 1973

†Cheiracanthus minor Agassiz 1835

†Cheiracanthus murchisoni Agassiz 1835

†Cheiracanthus splendens Gross 1973

G. †Homalacanthus Russell 1951

†Homalacanthus concinnus Russell 1951

G. †Protogonacanthus Miles 1966

†Protogonacanthus juergeni Miles 1966

G. †Pseudacanthodes White and Moy-Thomas 1941

†Pseudacanthodes pinnatus Fritsch 1893

G. †Traquairichthys Whitley 1933

†Traquairichthys pygmaeus Fritsch 1875

G. †Triazeugacanthus Miles 1966

†Triazeugacanthus affinis Whiteaves 1887

G. †Utahacanthus Schultze 1990

†Utahacanthus guntheri Schultze 1990

Fm. †Howittacanthidae Zajıc 1995

G. †Halimacanthodes Burrow et al. 2012

†Halimacanthodes ahlbergi Burrow et al. 2012

G. †Howittacanthus Long 1986

†Howittacanthus kentoni Long 1986

G. †Mesacanthus Traquair 1888

†Mesacanthus mitchelli Egerton 1861

†Mesacanthus peachi Egerton 1861

†Mesacanthus pusillus Agassiz 1844

†Mesacanthus semistriatus Woodward 1892

Invalid names: Cheiracanthidae [empty], Mesacanthidae [empty]

G. †Antarctonchus White 1968

†Antarctonchus glacialis White 1968

G. †Archaeacanthus Kade 1858

†Archaeacanthus quadrisulcatus Kade 1858

G. †Byssacanthoides Woodward 1921

†Byssacanthoides debenhami Woodward 1921

G. †Campylodus Rohon 1893

†Campylodus delgadoi Priem 1911

†Campylodus sigmoides Rohon 1893

Or. †Climatiiformes Berg 1940

G. †Cassidiceps Gagnier and Wilson 1996

†Cassidiceps vermiculatus Gagnier and Wilson 1996

Fm. †Climatiidae Berg 1940

G. †Brachyacanthus Egerton 1860

†Brachyacanthus scutiger Egerton 1860

G. †Brochoadmones Bernascek and Dineley 1977

†Brochoadmones milesi Bernascek and Dineley 1977

G. †Cheiracanthoides Wells 1944

†Cheiracanthoides comptus Wells 1944

G. †Climatius Agassiz 1845

†Climatius grandis Powrie 1870

†Climatius latispinosus Whiteaves 1881

†Climatius reticulatus Agassiz 1844

†Climatius scutiger Egerton 1860

†Climatius uncinatus Powrie 1864

G. †Erriwacanthus Orvig 1967

†Erriwacanthus falcatus Orvig 1967

†Erriwacanthus manbrookensis Miles 1973

G. †Fecundosquama Valiukevicius 2004

†Fecundosquama basiglobosa Valiukevicius 2004

G. †Nostolepis Pander 1856

†Nostolepis costata Goujet 1976

†Nostolepis gracilis Gross 1947

†Nostolepis halli Blom 1999

†Nostolepis robusta Brotzen 1934

†Nostolepis striata Pander 1856

G. †Sabrinacanthus Miles 1973

†Sabrinacanthus arcuatus Agassiz 1837

G. †Sevyacanthus Burrow 2007

†Sevyacanthus elliotti Burrow 2007

G. †Vernicomacanthus Miles 1973

†Vernicomacanthus uncinatus Powrie 1864

†Vernicomacanthus waynensis Miles 1973

Fm. †Culmacanthidae Long 1983

G. †Culmacanthus Long 1983

†Culmacanthus antarctica Young 1989

†Culmacanthus pambulensis Young 1989

†Culmacanthus stewarti Long 1983

Fm. †Gyracanthidae Woodward 1906

G. †Aganacanthus Traquair 1884

†Aganacanthus striatulus Traquair 1884

G. †Ankylacanthus Burrow et al. 2008

†Ankylacanthus convexus Burrow et al. 2008

†Ankylacanthus incurvus Burrow et al. 2008

G. †Antacanthus Dewalque 1877

†Antacanthus insignis Dewalque 1877

G. †Gyracanthides Woodward 1906

†Gyracanthides hawkinsi TURNER et al. 2005

†Gyracanthides murrayi Woodward 1906

†Gyracanthides riniensis Gess and Burrow 2023

†Gyracanthides warreni White 1968

G. †Gyracanthus Agassiz 1836

†Gyracanthus alleni Newberry 1873

†Gyracanthus alnwicensis Agassiz 1837

†Gyracanthus compressus Newberry 1873

†Gyracanthus convexus Gross 1933

†Gyracanthus cordatus Saint John and Worthen 1883

†Gyracanthus duplicatus Dawson 1868

†Gyracanthus falciformis Traquair 1902

†Gyracanthus formosus Agassiz 1836

†Gyracanthus incurvus Traquair 1890

†Gyracanthus inornatus Newberry 1889

†Gyracanthus magnificus Dawson 1868

†Gyracanthus nobilis Traquair 1883

†Gyracanthus obliquus M'Coy 1848

†Gyracanthus parvulus Bryant 1929

†Gyracanthus primaevus Eastman 1908

†Gyracanthus rectus Traquair 1890

†Gyracanthus rothrocki Wells and Blickle 1943

†Gyracanthus sarlei Hussakof and Bryant 1919

†Gyracanthus sherwoodi Newberry 1889

†Gyracanthus tuberculatus Agassiz 1837

†Gyracanthus youngii Traquair 1883

G. †Mitrodus Owen 1867

G. †Oracanthus Agassiz 1836

†Oracanthus bochumensis Jaekel 1890

†Oracanthus lineatus Newberry 1897

†Oracanthus milleri Agassiz 1836

†Oracanthus minor Agassiz 1836

†Oracanthus multiseriatus Newberry 1857

†Oracanthus obliquus Saint John and Worthen 1875

†Oracanthus pnigeus Newberry and Worthen 1866

†Oracanthus pustulosus Agassiz 1836

†Oracanthus rectus Saint John and Worthen 1883

†Oracanthus triangularis Eastman 1917

†Oracanthus trigonalis Saint John and Worthen 1883

†Oracanthus vetustus Leidy 1855

G. †Hanilepis Wang and Dong 1989

G. †Kathemacanthus Gagnier and Wilson 1996

†Kathemacanthus rosulentus Gagnier and Wilson 1996

G. †Pruemolepis Vieth-Schreiner 1983

Invalid names: Brochoadmonidae [empty]

Or. †Diplacanthiformes Berg 1940

G. †Bryantonchus Burrow 2007

†Bryantonchus peracutus Burrow 2007

G. †Devononchus Gross 1940

†Devononchus concinnus Gross 1940

†Devononchus ketleriensis Gross 1947

†Devononchus laevis Gross 1933

†Devononchus tenuispinus Gross 1933

Fm. †Diplacanthidae Woodward 1891

G. †Diplacanthus Agassiz 1843

†Diplacanthus balticus Gross 1973

†Diplacanthus carinatus Gross 1973

†Diplacanthus crassisimus Duff 1942

†Diplacanthus ellsi Gagnier 1996

†Diplacanthus horridus Woodward 1892

†Diplacanthus longispinus Agassiz 1844

†Diplacanthus striatus Agassiz 1844

†Diplacanthus tenuistriatus Traquair 1894

G. †Florestacanthus Burrow et al. 2003

†Florestacanthus morenoi Burrow et al. 2003

G. †Gladiobranchus Bernascek and Dineley 1977

†Gladiobranchus probaton Bernascek and Dineley 1977

G. †Milesacanthus Young and Burrow 2004

†Milesacanthus antarctica Young and Burrow 2004

Invalid names: Gladiobranchidae [empty]

G. †Eupleurogmus M'Coy 1890

†Eupleurogmus cresswelli M'Coy 1890

Fm. †Euthacanthidae Berg 1940

G. †Euthacanthus Powrie 1864

†Climatius macnicoli Powrie 1864

†Euthacanthus gracilis Powrie 1870

G. †Gemuendolepis Gross 1973

†Gemuendolepis muelleri Gross 1973

G. †Haplacanthus Agassiz 1845

†Haplacanthus ehrmanensis Gross 1940

†Haplacanthus marginalis Agassiz 1845

†Haplacanthus perseensis Gross 1942

G. †Homacanthus Agassiz 1845

†Homacanthus acinaciformis Eastman 1903

†Homacanthus arcuatus Agassiz 1844

†Homacanthus delicatulus Eastman 1903

†Homacanthus elegans Davis 1879

†Homacanthus gracilis Whiteaves 1889

†Homacanthus jaekeli Gross 1933

†Homacanthus macrodus M'Coy 1848

†Homacanthus microdus M'Coy 1848

†Homacanthus parvulus Newverry 1875

†Homacanthus sveteensis Gross 1942

Or. †Ischnacanthida Berg 1940

G. †Atopacanthus Hussakof and Bryant 1918

†Atopacanthus dentatus Hussakof and Bryant 1918

†Atopacanthus juvai Hairapetian and Burrow 2016

†Atopacanthus peculiaris Hussakof and Bryant 1918

G. †Poracanthodes Brotzen 1934

†Poracanthodes menneri Valiukevicius 1992

Or. †Ischnacanthiformes Berg 1940

G. †Acanthospina Valiukevicius 2003

†Acanthospina irregulare Valiukevicius 2003

Fm. †Acritolepidae Valiukevicius and Burrow 2005

G. †Acritolepis Valiukevicius 2003

†Acritolepis urvantsevi Valiukevicius 2003

†Acritolepis ushakovi Valiukevicius 2003

G. †Nerepisacanthus Burrow 2011

†Nerepisacanthus denisoni Burrow 2011

Fm. †Ischnacanthidae Woodward 1891

G. †Acanthodopsis Hancock and Atthey 1868

†Acanthodopsis acuta Wellburn 1902

†Acanthodopsis microdon Traquair 1894

†Acanthodopsis russelli Burrow 2004

†Acanthodopsis summiti Wellburn 1902

†Acanthodopsis wardi Hancock and Atthey 1868

G. †Apateacanthus Woodward 1891

†Apateacanthus dentatus Hussakof and Bryant 1919

†Apateacanthus peculiaris Hussakof 1913

†Apateacanthus vetustus Clarke 1885

G. †Arcticacanthus Valiukevicius 2003

†Arcticacanthus bicostatus Valiukevicius 2003

G. †Cacheacanthus Burrow 2007

†Cacheacanthus utahensis Burrow 2007

G. †Gomphonchus Gross 1971

†Gomphonchus hoppei Gross 1947

†Gomphonchus sandelensis Pander 1856

G. †Helenacanthus Bryant 1934

†Helenacanthus incurvus Bryant 1934

G. †Ictinocephalus Page 1859

G. †Marsdenius Wellburn 1902

†Marsdenius acuta Wellburn 1902

†Marsdenius summiti Wellburn 1902

G. †Persacanthus Janvier 1977

†Persacanthus kermanensis Janvier 1977

G. †Rohonilepis Valiukevicius 2004

†Rohonilepis breviornatus Valiukevicius 2004

G. †Uraniacanthus Miles 1973

†Uraniacanthus curtus Powrie 1870

†Uraniacanthus spinosus Miles 1973

G. †Ischnacanthus Powrie 1864

†Ischnacanthus anglicus White 1961

†Ischnacanthus gracilis Egerton 1861

†Ischnacanthus kingi White 1961

†Ischnacanthus scheii Spjeldnaes 1967

†Ischnacanthus wickhami White 1961

G. †Podoliacanthus Voichyshyn and Szaniawski 2012

†Podoliacanthus zychi Voichyshyn and Szaniawski 2012

Fm. †Poracanthodidae

G. †Acanthopora Valiukevicius 2003

†Acanthopora transitans Valiukevicius 2003

G. †Serradentus Newman et al. 2019

†Serradentus armstrongi Newman et al. 2019

G. †Xylacanthus Orvig 1967

†Xylacanthus grandis Orvig 1967

G. †Latviacanthus Schultze and Zidek 1982

†Latviacanthus ventspilsensis Schultze and Zidek 1982

G. †Lupopsyroides Hanke and Wilson 2004

†Lupopsyroides macracanthus Hanke and Wilson 2004

G. †Lupopsyrus Bernacsek and Dineley 1977

†Lupopsyrus pygmaeus Bernascek and Dineley 1977

Fm. †Machaeracanthidae Burrow and Young 2005

G. †Machaeracanthus Newberry 1857

†Machaeracanthus archiaci Rouault 1858

†Machaeracanthus bohemicus Barrande 1872

†Machaeracanthus kayseri Kegel 1913

†Machaeracanthus larteti Rouault 1858

†Machaeracanthus longaevus Eastman 1907

†Machaeracanthus major Newberry 1857

†Machaeracanthus peracutus Newberry 1857

†Machaeracanthus polonicus Gurich 1901

†Machaeracanthus retusus Wells 1940

†Machaeracanthus sulcatus Newberry 1857

G. †Monopleurodus Pander 1856

†Monopleurodus ohhesaarensis Pander 1856

G. †Neoasiacanthus Wang et al. 1980

G. †Nodacosta Gross 1940

†Nodacosta gemuendensis Gross 1933

†Nodacosta pauli Gross 1940

†Nodocosta denisoni Burrow 2007

G. †Nodonchus White 1961

†Nodonchus bambusifer White 1961

G. †Onchus Agassiz 1837

†Onchus arcuatus Agassiz 1837

†Onchus besomensis White 1961

†Onchus clintoni Claypole 1885

†Onchus granulatus Roemer 1885

†Onchus graptolitarum Fritsch 1907

†Onchus hamatus Agassiz 1837

†Onchus latus Leriche 1931

†Onchus major Etheridge 1872

†Onchus murchisoni Agassiz 1837

†Onchus overathensis Gross 1937

†Onchus penetrans Bryant 1932

†Onchus pennsylvanicus Claypole 1885

†Onchus rarus Liepin'sh 1959

†Onchus rectus Eastman 1899

†Onchus semistriatus Agassiz 1837

†Onchus siluricus Fritsch 1907

†Onchus sublaevis Agassiz 1845

†Onchus tenuistriatus Agassiz 1837

†Onchus verus Schmidt 1954

†Onchus wheathillensis White 1961

G. †Parexus Agassiz 1844

†Parexus falcatus Powrie 1870

†Parexus incurvus Agassiz 1845

†Parexus recurvus Agassiz 1844

G. †Paucicanthus Hanke 2002

†Paucicanthus vanelsti Hanke 2002

G. †Pinnacanthus Bryant 1934

†Pinnacanthus inequistriatus Bryant 1934

G. †Promesacanthus Hanke 2008

†Promesacanthus eppleri Hanke 2008

G. †Ptychodictyon Gross 1973

†Ptychodictyon americanum Burrow 2007

†Ptychodictyon rimosum Gross 1973

†Ptychodictyon sulcatum Gross 1973

G. †Seretolepis Karatajute-Talimaa 1968

G. †Striacanthus Hills 1931

†Striacanthus sicaeformis Hills 1931

G. †Tetanopsyrus Gagnier et al. 1999

†Tetanopsyrus breviacanthias Hanke et al. 2001

†Tetanopsyrus lindoei Gagnier et al. 1999

Fm. †Vesperaliidae Valiukevicius and Burrow 2005

G. †Acanthacanthus Valiukevicius 2003

†Acanthacanthus ornatus Valiukevicius 2003

G. †Yealepis Burrow and Young 1999

Invalid names: Acanthodi Jaekel 1911 [empty], Acanthodida Berg 1940 [empty], Climatiida Berg 1940 [empty], Diplacanthi Jaekel 1911 [empty]

Or. †Bradyodontida Woodward 1921

Subor. †Chimaerina Zangerl 1981

Invalid names: Deltodontidae Zangerl 1981 [empty]

G. †Jimpohlia Zangerl 1979

†Jimpohlia erinacea Zangerl 1979

Infracl. †Cladoselachimorpha

Or. †Cladoselachiformes

Fm. †Cladoselachidae Dean 1894

G. †Cladoselache Dean 1894

†Cladoselache clarki Claypole 1893

†Cladoselache fyleri Newberry 1889

†Cladoselache kepleri Newberry 1888

†Cladoselache newberryi Dean 1894

†Cladoselache sinuatus Claypole 1893

G. †Maghriboselache Klug et al. 2023

†Maghriboselache mohamezanei Klug et al. 2023

G. †Monocladodus Claypole 1893

†Monocladodus clarki Claypole 1893

†Monocladodus pinnatus Claypole 1893

G. †Doliodus Traquair 1893

†Doliodus latispinosus Traquair 1893

G. †Duplisuggestus Johns 1997

†Duplisuggestus duplirugosus Johns 1997

†Duplisuggestus profundisulcus Johns 1997

Subcl. Elasmobranchii Bonaparte 1838 [elasmobranch]

G. †Amelacanthus Maisey 1982

†Amelacanthus laevis Davis 1883

†Amelacanthus plicatus Davis 1883

†Amelacanthus pustulatus Davis 1883

†Amelacanthus sulcatus Agassiz 1837

G. †Annulicorona Chen and Cuny 2003

†Annulicorona pyramidalis Chen and Cuny 2003

Or. †Antarctilamniformes Ginter et al. 2008

Fm. †Antarctilamnidae Ginter et al. 2008

G. †Antarctilamna Young 1982

†Antarctilamna prisca Young 1982

†Antarctilamna ultima Gess and Coates 2015

G. †Wellerodus Turner 1997

Fm. †Coronodontidae Harris 1951

G. †Coronodus Bryant 1935

G. †Aporomicrodus Fowler 1958

Aporomicrodus laevis Emmons 1857

Invalid names: Microdus Emmons 1857 [replaced]

G. †Arduodens Hairapetian and Ginter 2009

G. †Carcharopsis Agassiz 1843

†Carcharopsis prototypus Agassiz 1843

†Carcharopsis wortheni Newberry and Worthen 1866

Invalid names: Dicrenodus texanus Eastman 1917 [synonym]

G. †Carinasubcorona Johns 1997

†Carinasubcorona bamaolinense Chen 2002

†Carinasubcorona subradiciplana Johns 1997

G. †Celtiberina Wang 1993

Fm. Cestraciontidae Bonaparte 1838 [bullhead shark]

G. †Diclitodus Davis 1883

†Diclitodus scitulus Davis 1883

G. †Scoliorhiza Raymond 1925

†Scoliorhiza kellyi Raymond 1925

†Scoliorhiza whitei St John and Worthen 1875

G. †Changxingselache Wang et al. 2007

†Changxingselache wangi Wang et al. 2007

Superor. †Cladodontomorphi Ginter et al. 2010

Fm. †Jalodontidae Ginter et al. 2002

G. †Adamantina Bendix-Almgreen 1993

†Adamantina benedictae Bendix-Almgreen 1993

†Adamantina foliacea Ivanov 1999

G. †Isacrodus Ivanov et al. 2012

†Isacrodus marthae Ivanov et al. 2012

G. †Texasodus Ivanov et al. 2012

†Texasodus varidentatus Ivanov et al. 2012

Or. †Squatinactiformes Zangerl 1981

Fm. †Squatinactidae Cappetta et al. 1993

G. †Squatinactis Lund and Zangerl 1974

Or. †Symmoriiformes Zangerl 1981

G. †Dwykaselachus Oelofsen 1986

†Dwykaselachus oosthuizeni Oelofsen 1986

Fm. †Falcatidae Zangerl 1990

G. †Cosmoselachus Bronson et al. 2024

G. †Damocles Lund 1986

G. †Denaea Pruvost 1922

G. †Falcatus Lund 1985

G. †Ozarcus Pradel et al. 2014

G. †Ferromirum Frey et al. 2020

†Ferromirum oukherbouchi Frey et al. 2020

G. †Kawichthys Pradel et al. 2011

†Kawichthys moodiei Pradel et al. 2011

G. †Kungurodus Ivanov 2017

†Kungurodus obliquus Ivanov 2005

G. †Stemmatias Hay 1899

†Stemmatias bicristatus St John and Worthen 1875

†Stemmatias bifurcatus St John and Worthen 1875

†Stemmatias cheiriformis St John and Worthen 1875

†Stemmatias compactus St John and Worthen 1875

†Stemmatias keokuk St John and Worthen 1875

†Stemmatias simplex St John and Worthen 1875

†Stemmatias symmetricus St John and Worthen 1875

Invalid names: Gunnellodus Wilimovksy 1954 [synonym], Stemmatodus St John and Worthen 1875 [replaced]

Fm. †Symmoriidae Dean 1909

G. †Cobelodus Zangerl 1973

G. †Danaea Pruvost 1922

G. †Gutturensis Sequeira and Coates 2000

G. †Orestiacanthus Lund 1984

G. †Petrodus McCoy 1848

G. †Stethacanthulus Zangerl 1990

G. †Stethacanthus Newberry 1889

Invalid names: Pinegocaptus Minikh 2006 [synonym]

G. †Symmorium Cope 1893

Invalid names: Stethacanthidae Lund 1974 [synonym]

Invalid names: Denaeidae Berg 1940 [empty]

Or. †Cladoselachida Dean 1909

G. †Iberolepis Mader 1986

G. †Lunalepis Mader 1986

G. †Complanicorona Johns 1997

†Complanicorona glabra Johns 1997

†Complanicorona rugosimargines Johns 1997

†Complanicorona subrugosa Johns 1997

G. †Coniunctio Johns 1997

†Coniunctio aequirugosa Johns 1997

†Coniunctio multirugosa Johns 1997

G. †Eunemacanthus StJohn and Worhten 1883

†Eunemacanthus costatus Newberry and Worthen 1866

†Eunemacanthus heterogyrus McCoy 1855

Invalid names: Ctenacanthus heterogyrus Agassiz 1837 [objective synonym]

†Eunemacanthus keytei Branson 1916

†Eunemacanthus venator Khabakob 1928

Unr. Euselachiformes Maisey 1975

Or. Batoidei

Subor. †Sarcura

Invalid names: Arthropteridae [empty], Asterodermidae [empty]

Invalid names: Dasyatoidei [empty], Ganopristinidea Case 1978 [empty], Narcaciontes [empty]

Infracl. Euselachii Hay 1902

G. †Acronemus Rieppel 1982

†Acronemus tuberculatus Bassani 1886

Invalid names: Acrodus bicarinatus Bassani 1886 [synonym]

G. †Artiodus Ivanov and Duffin 2017

†Artiodus prominens Ivanov and Duffin 2017

G. †Cheirostephanus Casier 1958

†Cheirostephanus hurzeleri Casier 1958

Or. †Ctenacanthiformes Cappetta 1988

G. †Acandylacanthus St. John and Worthen 1875

G. †Arauzia Mader 1986

Fm. †Ctenacanthidae Dean 1909

G. †Acondylacanthus John and Worthen 1875

G. †Bythiacanthus StJohn and Worthen 1875

G. †Cladodoides Maisey 2001

G. †Cladodus Agassiz 1843

Invalid names: Styptobasis Cope 1891 [synonym]

G. †Cratoselache Woodward 1924

G. †Ctenacanthus Agassiz 1836

G. †Glikmanius Ginter et al. 2005

G. †Glymmatacanthus StJohn and Worhten 1875

G. †Tamiobatis Eastman 1897

Invalid names: Anodontacanthus ruthenorum Chabakov 1928 [nomen nudum]

Superfm. †Ctenacanthoidea Zangerl 1981

G. †Anaclitacanthus St. John and Worthen 1875

G. †Asteroptychius Agassiz 1843

Fm. †Bandringidae Zangerl 1969

G. †Carinacanthus Bryant 1934

G. †Emerikodus Trinajstic and George 2009

G. †Pyknotylacanthus Mutter and Rieber 2005

G. †Rhombacanthus Williams 1985

G. †Wodnika Münster 1843

Invalid names: Radamas Münster 1843 [synonym]

Invalid names: Tamiobatidae Hay 1902 [empty]

G. †Dracopristis Hodnett et al. 2021

†Dracopristis hoffmanorum Hodnett et al. 2021

G. †Goodrichthys

G. †Grossosteus White and Moy-Thomas 1940

Invalid names: Coelosteus Gross 1930 [replaced]

Fm. †Heslerodidae Maisey 2010

G. †Heslerodus Ginter 2002

G. †Kaibabvenator Hodnett et al. 2012

†Kaibabvenator swiftae Hodnett et al. 2012

G. †Moyacanthus

G. †Nanoskalme Hodnett et al. 2012

†Nanoskalme natans Hodnett et al. 2012

G. †Neosaivodus Hodnett et al. 2012

†Neosaivodus flagstaffensis Hodnett et al. 2012

G. †Pororhiza

G. †Saivodus Duffin and Ginter 2006

†Saivodus striatus Agassiz 1843

Invalid names: Cladodus corrugatus Croneis 1927 [synonym], Cladodus curtus Davis 1883 [synonym], Cladodus eccentricus St John and Worthen 1875 [synonym], Cladodus elongatus Davis 1883 [synonym], Cladodus ferox Newberry and Worthen 1866 [synonym], Cladodus grandis Newberry and Worthen 1866 [synonym], Cladodus hornei Davis 1883 [synonym], Cladodus magnificus Tuomey 1858 [synonym], Cladodus prototypus Eastman 1907 [synonym], Cladodus spinosus Newberry and Worthen 1866 [synonym], Cladodus stenopus Newberry and Worthen 1866 [synonym]

G. †Favusodus Li et al. 2022

†Favusodus orientalis Li et al. 2022

Subor. †Galei

Fm. †Ginglystomidae

G. †Nebrodes Garman 1913

G. †Plicodus Winkler 1874

Fm. †Pentanchidae

G. †Caninoa Nardo 1844

G. †Caninotus Nardo 1844

G. †Pentanchus Smith 1912

G. †Thalassoklephtes Gistel 1848

Fm. †Rhineodontidae

G. †Micristodus Gill 1865

Invalid names: Lamnoidei [empty]

Unr. Galeoidei

Fm. †Galeidae

G. †Boreogaleus Gill 1861

G. †Calliscyllium Tanaka 1912

G. †Cymocephalus Klein 1777

G. †Cynias Gill 1903

G. †Dirrhizodon Klunzinger 1870

G. †Eridacnis Smith 1913

G. †Eulamia Gill 1861

G. †Gyrace Jordan and Hannibal 1922

G. †Hypopriondon Gill 1861

G. †Isoplagiodon Gill 1861

G. †Leptocarcharias Günther 1879

G. †Leptocarias Smith 1837

G. †Myrmillo Gistel 1848

G. †Platypodon Poey 1876

G. †Pleuracromylon Gill 1864

G. †Pseudogaleus Jaekel 1894

G. †Rhinotriacis Gill 1862

G. †Rhizoprion Ogilby 1915

G. †Scylliogaleus Boulenger 1902

G. †Thalassorhinus Müller and Henle 1838

Fm. †Pliotremidae

G. Pliotrema

G. †Hueneichthys Reif 1977

†Hueneichthys costatus Reif 1977

Or. †Hybodontiformes Patterson 1966

G. †Cassisodus Ginter and Sun 2007

G. †Doratodus Schmid 1861

†Doratodus tricuspidatus Schmid 1861

G. †Hamiltonichthys Maisey 1989

†Hamiltonichthys mapesi Maisey 1989

G. †Hubeiodus Shang et al. 2008 [Hubei tooth]

†Hubeiodus ziguiensis Shang et al. 2008

Superfm. †Hybodontoidea Agassiz 1834

Fm. †Acrodontidae Casier 1959

G. †Acrorhizodus Cappetta et al. 2006

G. †Diablodontus Hodnett et al. 2013

Fm. †Distobatidae Werner 1989

Fm. †Homalodontidae Mutter et al. 2008

Invalid names: Wapitiodidae Mutter et al. 2007 [replaced]

Fm. †Hybodontidae Agassiz 1834

G. †Lamarodus Ivanov 2020

G. †Lissodus Brough 1935

Fm. †Lonchidiidae Herman 1977

Fm. †Polyacrodontidae Glükman 1964

G. †Trichorhipis

Fm. †Tristychiidae Moy-Thomas 1936

Invalid names: Asteracanthus semiverrucosus Egerton 1854 [nomen dubium], Asteracanthus verrucosus Egerton 1854 [nomen dubium], Hybodus strictus Agassiz 1836 [nomen dubium]

G. †Mesodmodus

†Mesodmodus explanatus Saint John and Worthen 1875

†Mesodmodus exsculptus Saint John and Worthen 1875

†Mesodmodus ornatus Saint John and Worthen 1875

G. †Omanoselache Koot et al. 2013

†Omanoselache angiolinii Koot et al. 2013

†Omanoselache bucheri Cuny et al. 2001

†Omanoselache contrarius Johns 1997

†Omanoselache halli Koot and Cuny 2014

†Omanoselache hendersoni Koot et al. 2013

G. †Onychoselache Dick 1978

†Onychoselache traquairi Dick 1978

Fm. †Pseudodalatiidae Reif 1978

G. †Pseudodalatias Reif 1978

G. †Reesodus Koot et al. 2013

†Reesodus pectinatus Lebedev 1996

†Reesodus underwoodi Koot et al. 2013

†Reesodus wirksworthensis Duffin 1985

Fm. †Steinbachodontidae Reif 1980

G. †Steinbachodus Reif 1980

G. †Teresodus Koot et al. 2013

†Teresodus amplexus Koot et al. 2013

Unr. Neoselachii Compagno 1977

Fm. †Agaleidae Rees 2000

G. †Agaleus Duffin and Ward 1983

Fm. †Anachronistidae Duffin and Ward 1983

G. †Cooleyella Gunnell 1933

Invalid names: Anachronistes Duffin and Ward 1983 [synonym]

Unr. Batoidea [ray]

Subor. †Masticura Gill 1872

Superfm. †Rhinobatoidea

Or. Torpediniformes [electric ray]

Invalid names: Pristiformes [empty]

Superor. Batomorphii Cappetta 1980

G. †Enantiobatis Cappetta and Case 1999

Or. Myliobatiformes Compagno 1973 [stingray]

Or. Rajiformes Berg 1940 [ray]

Invalid names: Sclerorhynchiformes Kriwet 2004 [synonym]

Or. †Rhinopristiformes Last et al. 2016

Fm. †Zanobatidae Fowler 1934

G. †Duffinselache Andreev and Cuny 2012

†Duffinselache holwellensis Duffin 1998

Superor. Galeomorphii Compagno 1973

Or. Carcharhiniformes Compagno 1973 [ground shark]

G. †Jurobatos Thies 1983

Or. Lamniformes Berg 1958 [mackerel shark]

Or. Orectolobiformes Applegate 1972 [carpet shark]

Invalid names: Galeoidea Hay 1902 [empty]

G. †Grozonodon Cuny et al. 1998

†Grozonodon candaui Cuny et al. 1998

G. †Hopleacanthus Schaumberg 1982

†Hopleacanthus richelsdorfensis Schaumberg 1982

Fm. †Mcmurdodontidae White 1968

G. †Mcmurdodus

G. †Nanocetorhinus Underwood and Schlogl 2013

†Nanocetorhinus tuberculatus Underwood and Schlogl 2013

G. †Odontorhytis Bohm 1926

†Odontorhytis pappenheimi Bohm 1926

Fm. †Ostenoselachidae Duffin 1998

G. †Ostenoselache Duffin 1998

G. †Rhomaleodus Andreev and Cuny 2012

†Rhomaleodus budurovi Andreev and Cuny 2012

Unr. Selachii [shark]

Subor. †Asterospondyli Haase

G. †Cooperodon Whitley 1956

Invalid names: Cooperella Gunnell 1933 [replaced]

Subor. †Ctenacanthoidei Moy-Thomas and Miles 1971

G. †Fortscottella Gunnell 1931

Superor. †Galeomorphi

G. †Hammondella Gunnell 1933

G. †Idiacanthus Gunnell 1933

G. †Kirkella Gunnell 1933

G. †Moreyella Gunnell 1933

Fm. Notidanidae Bonaparte

Subor. Rajae

Subor. Squali Müller and Henle 1838

Superor. †Squalimorphi

Subor. †Tectospondyli

Fm. Trygonidae Müller and Henle 1837

Invalid names: Anacoracoidei [empty], Centrobati Jaekel 1911 [empty], Heterodontoidea Hay 1902 [empty], Notidani Jaekel 1911 [empty], Notidanoidei [empty], Palaeosquali Jaekel 1911 [empty], Rhinae Jaekel 1911 [empty], Rhinoraji Jaekel 1911 [empty], Scyllidae [empty], Spinacidi Jaekel 1911 [empty], Statodonti Jaekel 1911 [empty], Trirostri Jaekel 1911 [empty]

Superor. †Squalea Shirai 1996

Superor. †Hypnosqualea Carvalho and Maisey 1996

G. †Microtoxodus Delsate 2003

Or. Squalomorphii Compagno 1973

Or. Hexanchiformes de Buen 1926

Or. Pristiophoriformes Berg 1958 [saw shark]

Invalid names: Hexanchida [empty]

Or. †Synechodontiformes Duffin and Ward 1993

G. †Keichouodus Li et al. 2022

G. †Mucrovenator Cuny et al. 2001

Fm. †Orthacodontidae de Beaumont 1960

Fm. †Palaeospinacidae Regan 1906

Fm. †Paraorthacodontidae Klug 2010

G. †Parascylloides Thies et al. 2014

G. †Polyfaciodus Koot and Cuny 2014

G. †Rhomphaiodon Duffin 1993

G. †Safrodus Koot and Cuny 2014

G. †Vallisodus Duffin 2021

†Vallisodus coppi Duffin 1982

Invalid names: Vallisia Duffin 1982 [replaced]

Invalid names: Dalatiiformes Shirai 1992 [empty], Galea Shirai 1996 [empty], Palaeocarcharidae [empty], Squatinomorphii Compagno 1973 [empty]

Superfm. †Protacrodontoidea Zangerl 1981

G. †Holmesella

†Holmesella crassa Gunnell 1933

†Holmesella elongata Gunnell 1933

†Holmesella equilaterata Gunnell 1933

†Holmesella ornata Gunnell 1933

†Holmesella parallelata Gunnell 1933

†Holmesella parallella Gunnell 1933

†Holmesella quadrata Gunnel 1931

†Holmesella rhomboidelis Gunnell 1933

†Holmesella speni Gunnell 1933

†Holmesella triangularis Harlton 1933

†Holmesella wapanuckensis Harlton 1933

Fm. †Protacrodontidae Cappetta et al. 1993

G. †Dalmehodus Long and Hairapetian 2000

G. †Deihim Ginter et al. 2002

G. †Protacrodus Jaekel 1925

Fm. †Sphenacanthidae Maisey 1982

G. †Khuffia Koot et al. 2013

†Khuffia lenis Koot et al. 2013

†Khuffia prolixa Koot et al. 2013

G. †Sphenacanthus Agassiz 1837

†Sphenacanthus aequistriatus Davis 1879

†Sphenacanthus costellatus Traquair 1884

†Sphenacanthus hybodioides Agassiz 1843

†Sphenacanthus hybodoides Newberry 1873

†Sphenacanthus marshi Newberry 1873

†Sphenacanthus riorastoensis Pauliv et al. 2012

†Sphenacanthus sanpauloensis Chahud et al. 2010

†Sphenacanthus serrulatus Agassiz 1837

G. †Surcaudalus Leu 1989

†Surcaudalus rostratus Leu 1989

G. †Tuberospina Lebedev 1995

Invalid names: Dasyatiformes [empty], Hybodonta [empty], Musteliformes [empty], Notidaniformes [empty], Protacrodontiformes [empty], Scyliorhiniformes [empty], Squatinoidei Berg 1940 [empty], Squatinorajiformes [empty], Synechodontidae Casier 1947 [empty]

G. †Fragilicorona Johns 1997

†Fragilicorona brevirostrum Johns 1997

†Fragilicorona labribrevirostrum Johns 1997

†Fragilicorona labricuspis Johns 1997

†Fragilicorona labritricuspis Johns 1997

†Fragilicorona paralabritricuspis Chen 2002

†Fragilicorona tricuspis Johns 1997

†Fragilicorona unicuspis Johns 1997

Or. Galeiformes

Invalid names: Isuroidei Garman 1913 [empty]

G. †Glabrisubcorona Johns 1997

†Glabrisubcorona arduidevexa Johns 1997

†Glabrisubcorona tendibasis Johns 1997

†Glabrisubcorona vadosidevexa Johns 1997

G. †Gondwanodus Daymond 1999

†Gondwanodus irwinensis Daymond 1999

Unr. †Ichthyodorulites Buckland

G. †Cyrtacanthus Newberry 1873

†Cyrtacanthus dentatus Newberry 1873

G. †Gampsacanthus Saint John and Worthen 1875

†Gampsacanthus latus Saint John and Worthen 1875

†Gampsacanthus squamosus Saint John and Worthen 1875

†Gampsacanthus typus Saint John and Worthen 1875

G. †Lecracanthus Saint John and Worthen 1875

†Lecracanthus unguiculus Saint John and Worthen 1875

G. †Marracanthus St. John and Worthen 1875

†Marracanthus rectus Newberry and Worthen 1866

G. †Phlyctaenacanthus Eastman 1898

†Phlyctaenacanthus telleri Eastman 1898

Fm. †Kannathalepididae Marss and Gagnier 2001

G. †Kannathalepis Marss and Gagnier 2001

†Kannathalepis milleri Marss and Gagnier 2001

G. †Labascicorona Johns 1997

†Labascicorona alata Johns 1997

†Labascicorona longifossae Johns 1997

†Labascicorona mediflexura Johns 1997

†Labascicorona nitidifastigia Johns 1997

†Labascicorona trifastigia Johns 1997

G. †Labrilancea Johns 1997

†Labrilancea glabrisubcuspis Johns 1997

†Labrilancea glabrisubtricuspis Johns 1997

G. †Leonodus Mader 1986

G. †Lesnilomia Ginter 2008

Fm. †Listracanthidae Martill et al. 2014

G. †Acanthorhachis Martill et al. 2014

†Acanthorhachis spinatus Bolton 1896

Invalid names: Listracanthus wardi Woodward 1891 [synonym]

G. †Listracanthus Newberry and Worthen 1870

†Listracanthus hystrix Newberry and Worthen 1870

Invalid names: Listracanthus beyrichi von Koenen 1879 [synonym], Listracanthus eliasi Hibbard 1938 [synonym], Listracanthus hildrethi Newberry 1875 [synonym], Listracanthus woltersi Schmidt 1949 [synonym]

†Listracanthus pectenatus Mutter and Neuman 2006

G. †Lobaticorona Johns 1997

†Lobaticorona floridibasis Johns 1997

†Lobaticorona floriditabella Johns 1997

†Lobaticorona floriditurris Johns 1997

†Lobaticorona tumidibasis Johns 1997

†Lobaticorona tumiditabella Johns 1997

†Lobaticorona tumiditurris Johns 1997

G. †Meishanselache Wang et al. 2007

†Meishanselache liui Wang et al. 2007

G. †Minuticorona Johns 1997

†Minuticorona triculmina Johns 1997

†Minuticorona uniculmen Johns 1997

Or. †Omalodontiformes Turner 1997

Fm. †Aztecodontidae Hairapetian et al. 2008

G. †Aztecodus Long and Young 1995

Invalid names: Anareodus Long and Young 1995 [synonym]

G. †Manberodus Hairapetian et al. 2008

†Manberodus fortis Hairapetian et al. 2008

Fm. †Omalodontidae Ginter et al. 2008

G. †Omalodus Ginter and Ivano 1992

†Omalodus grabaui Hussakof and Bryant 1918

Invalid names: Omalodus bryanti Wells 1944 [synonym], Omalodus schultzei Hampe et al. 2004 [synonym]

G. †Portalodus Long and Young 1995

G. †Siberiodus Ivanov and Rodina 2004

G. †Oniscina Goldenberg 1873

†Oniscina ornata Goldenberg 1873

Invalid names: Arthropleura ornata Goldenberg 1873 [synonym]

G. †Ornathiliabrilance Johns 1997

G. †Ornatilabrilancea Johns 1997

†Ornatilabrilancea circacarina Johns 1997

†Ornatilabrilancea solicarina Johns 1997

Infracl. Osteodonti

Superor. Lamnae

Or. Odontaspidida

Superfm. Isuroidea Glükman 1964

Superfm. Odontaspidoidea

Superfm. †Scapanorhynchoidea

Invalid names: Anacoracoidea [empty]

G. †Parvicorona Chen and Cuny 2003

†Parvicorona dacrysulca Chen and Cuny 2003

G. †Parvidiabolus Johns 1997

†Parvidiabolus acutus Johns 1997

†Parvidiabolus convexus Johns 1997

†Parvidiabolus longisulcus Johns 1997

†Parvidiabolus obliquus Johns 1997

G. †Parviscapha Johns 1997

†Parviscapha trivela Johns 1997

†Parviscapha univelum Johns 1997

Or. †Phoebodontiformes Ginter et al. 2002

G. †Jalodus Ginter 1999

Fm. †Phoebodontidae Williams 1985

G. †Diademodus Harris 1951

G. †Phoebodus St. John and Worthen 1875

†Phoebodus bifurcatus Ginter and Ivanov 1992

†Phoebodus densneptuni Eastman 1903

†Phoebodus fastigatus Ginter and Ivanov 1992

†Phoebodus latus Ginter and Ivanov 1995

†Phoebodus macisaacsii Saint John and Worthen 1875

†Phoebodus politus Newberry 1899

†Phoebodus saidselachus Frey et al. 2019

†Phoebodus sophiae St. John and Worthen 1875

†Phoebodus springeri Saint John and Worthen 1875

G. †Thrinacodus St. John and Worthen 1875

†Thrinacodus bicornis Newberry 1879

†Thrinacodus duplicatus Newberry and Worthen 1866

†Thrinacodus incurvus Newberry and Worthen 1866

Invalid names: Harpagodens ferox Turner 1982 [synonym], Thrinacodus nanus St. John and Worthen 1875 [synonym]

Invalid names: Harpago Turner 1982 [synonym], Harpagodens Turner 1983 [synonym]

G. †Physonemus Agassiz 1843

†Physonemus arcuatus McCoy 1848

†Physonemus asper Leidy 1859

†Physonemus carinatus Saint John and Worthen 1875

†Physonemus gemmatus Newberry and Worthen 1866

†Physonemus gigas Newberry and Worthen 1870

†Physonemus gigii Branson 1916

†Physonemus hamuspiscatorius Eastman 1903

†Physonemus mirabilis St John and Worthen 1875

†Physonemus pandatus Eastman 1903

†Physonemus stellatus Newberry 1889

†Physonemus striatus Moore 1929

†Physonemus subteres Agassiz 1843

Invalid names: Batacanthus St John and Worthen 1870 [synonym], Drepanacanthus Newberry and Worthen 1866 [synonym], Gnathacanthus Davis 1883 [synonym], Xystracanthus Leidy 1859 [synonym]

Or. †Plagiostomi Cuvier

Fm. Carcharidae

G. †Rhaibodus Bohm 1926

†Rhaibodus rapax Bohm 1926

G. †Narcopterus Agassiz 1835

Invalid names: Eulamiidae [empty], Hexeptranchidae [empty], Raiae [empty]

G. †Platylithophycus Johnson and Howell 1948

†Platylithophycus cretaceus Johnson and Howell 1948

Fm. †Protodontidae Woodward 1932

G. †Dendrodus Owen 1841

†Dendrodus arisaigensis Whiteaves 1896

†Dendrodus biporcatus Owen 1841

†Dendrodus strigatus Owen 1841

G. †Protodus Woodward 1892

†Protodus jexi Woodward 1892

G. †Stigmodus Brotzen 1934

G. †Raineria Osswald 1928

†Raineria osswaldi Cappetta 1987

G. †Rosaodus Li et al. 2022

†Rosaodus xingyiensis Li et al. 2022

G. †Rugosicorona Johns 1997

†Rugosicorona devexa Johns 1997

G. †Sacrisubcorona Johns 1997

†Sacrisubcorona circabasis Johns et al. 1997

†Sacrisubcorona submedicarina Johns 1997

Subcl. Selachii [shark]

Or. †Acanthodei Gunnell 1933

Fm. †Acanthoessidae Hay 1902

G. †Acanthoessus Agassiz 1832

G. †Heteracanthus Newberry 1889

G. †Holacanthodes Beyrich 1848

G. †Machaerius Rouault 1858

G. †Pelonectes Gistel 1848

G. †Rhadinacanthus Traquair 1888

G. †Traquairia Fritsch 1893

Or. †Cestraciontes

Invalid names: Janassides [empty], Prosarthri [empty]

Or. †Ichthyotomi Cope

Fm. †Cladodontidae

G. †Bathycheilodus St John and Worthen 1875

G. †Hybocladodus

G. †Lambdodus

G. †Pternodus Garman 1885

Invalid names: Pleuracanthides Haeckel 1895 [empty]

Or. †Polyspondyli Jordan 1963

Fm. †Onchidae

G. †Leptocheles M'Coy 1853

G. †Naulas Agassiz 1845

Invalid names: Pleuropterygii [empty], Selachophidichthyoidei [empty]

G. †Serratocorona Chen 2002

†Serratocorona halberdiforme Chen 2002

G. †Siamodus

G. †Suaviloquentia Johns 1997

†Suaviloquentia brevilingua Johns 1997

†Suaviloquentia longilingua Johns 1997

†Suaviloquentia obliquilingua Johns 1997

G. †Undulaticorona Johns 1997

†Undulaticorona profundifossae Johns 1997

†Undulaticorona propensa Johns 1997

Or. †Xenacanthida Glikmann 1964

G. †Anodontacanthus Davis 1881

Fm. †Orthacanthidae Heyler and Poplin 1989

G. †Orthacanthus Agassiz 1843

†Orthacanthus adamas Babcock 2024

Invalid names: Orthacanthus gracilis Newberry 1875 [replaced]

†Orthacanthus buxieri Heyler and Poplin 1989

†Orthacanthus compressus Newberry 1856

Invalid names: Diplodus latus Newberry 1856 [synonym], Diplodus penetrans Dawson 1868 [synonym]

†Orthacanthus donnelljohnsi Johnson and Thayer 2009

†Orthacanthus gibbosus Agassiz 1843

†Orthacanthus gracilis Giebel 1848

†Orthacanthus lintonensis Babcock 2024

Invalid names: Diplodus gracilis Newberry 1856 [replaced]

†Orthacanthus milleri Agassiz 1843

†Orthacanthus minor Agassiz 1843

†Orthacanthus platypternus Cope 1884

†Orthacanthus pustulosus Agassiz 1843

†Orthacanthus texensis Cope 1888

Invalid names: Chilodus Giebel 1847 [synonym], Didymodus Cope 1883 [synonym], Diplodus Agassiz 1843 [synonym], Dittodus Owen 1867 [synonym], Giebelodus Whitley 1940 [synonym]

Infracl. †Xenacanthimorpha

Or. †Bransonelliformes Hampe and Ivanov 2007

G. †Barbclabornia Johnson 2003

†Barbclabornia luedersensis Berman 1970

G. †Bransonella Harlton 1933

†Bransonella lingulata Ivanov and Ginter 1996

†Bransonella nebraskensis Johnson 1984

†Bransonella tribula Elliott and Hodnett 2013

†Bransonella tridentata Harlton 1933

Or. †Xenacanthiformes Berg 1955

Fm. †Diplodoselachidae Dick 1981

G. †Dicentrodus Traquair 1888

G. †Diplodoselache Dick 1981

G. †Hagenoselache Hampe and Heidtke 1997

G. †Lebachacanthus Soler-Gijon 1997

Fm. †Xenacanthidae Fritsch 1889

G. †Acanthopleurus Agassiz 1843

G. †Aganodus Owen 1867

G. †Compsacanthus Newberry 1856

G. †Diacranodus Garman 1885

G. †Fayolia Renault and Zeiller 1884

G. †Lepacanthus Arthaber 1896

G. †Lophacanthus Stock 1880

G. †Mooreodontus Hampe and Schneider 2010

G. †Ochlodus Owen 1867

G. †Phricacanthus Davis 1879

G. †Platyacanthus Fritsch 1889

G. †Pleuracanthus Agassiz 1837

G. †Plicatodus Hampe 1995

G. †Pternodus Owen 1867

G. †Triodus Jordan 1849

G. †Wurdigneria Richter 2005

G. †Xenacanthus Beyrich 1848

Fm. †Xenosynechodontidae Gluckman 1980

G. †Xenosynechodus Gluckman 1980

Invalid names: Cladodontomorphii Obruchev 1967 [empty], Cladodus hassiacus Gross 1937 [nomen dubium], Cladodus wildungensis Jaekel 1921 [nomen dubium], Cladoselachii Dean 1894 [empty], Coronodontida Zangerl 1981 [empty], Orodontida Zangerl 1981 [empty], Pleuracanthidae Woodward [empty], Pleuracanthodii [empty], Pristiorajea Cicimurri 2007 [empty], Proselachii Gadow 1898 [empty], Selachimorpha Nelson 1984 [empty]

G. †Elegestolepis Karatajute-Talimaa 1973

G. †Eucentrurus Traquair 1901

G. †Fasciodus Henry 1876

†Fasciodus pectinatus Henry 1876

G. †Geisacanthus St John and Worthen 1875

G. †Gladbachus Heidtke and Kratschmer 2001

†Gladbachus adentatus Heidtke and Kratschmer 2001

G. †Gogoselachus Long et al. 2015

†Gogoselachus lynnbeazleyae Long et al. 2015

G. †Gracilisuggestus Johns 1997

†Gracilisuggestus triapices Johns 1997

†Gracilisuggestus uniapex Johns 1997

Subcl. Holocephali Bonaparte 1832 [chimaera]

Or. †Debeeriiformes

Fm. †Debeeriidae Grogan and Lund 2000

G. †Debeerius Grogan and Lund 2000

†Debeerius ellefseni Grogan and Lund 2000

G. †Heteropetalus

†Heteropetalus elegantulus Lund 1977

G. †Delphyodontos Lund 1980

†Delphyodontos dacriformes Lund 1980

G. †Edaphodus Egerton 1836

Invalid names: Passalodon Buckland 1838 [synonym]

Or. †Eugeneodontiformes Zangerl 1981

Superfm. †Caseodontoidea Zangerl 1981

G. †Campodus de Koninck 1844

†Campodus agassizianus Koninck 1844

†Campodus corrugatus Newberry and Worthen 1870

†Campodus scitulus Saint John and Worthen 1875

†Campodus virginianus Saint John and Worthen 1875

Fm. †Caseodontidae Zangerl 1981

G. †Caseodus Zangerl 1981

G. †Erikodus Nielsen 1952

G. †Fadenia Nielsen 1932

G. †Ornithoprion

G. †Pirodus Lebedev 2001

G. †Romerodus Zangerl 1981

G. †Chiastodus Trautschold 1879

Fm. †Eugeneodontidae Zangerl 1981

G. †Bobbodus Zangerl 1981

G. †Eugeneodus Zangerl 1981

G. †Gilliodus Zangerl 1981

Invalid names: Orodus corrugatus Romer 1942 [nomen dubium]

G. †Tiaraju Richter 2007

Superfm. †Edestoidea Hay 1930

Fm. †Edestidae Jaekel 1899

G. †Edestus Leidy 1855

G. †Euctenius Traquair 1881

G. †Lestrodus

G. †Prospiraxis Williams 1887

G. †Protopirata Trautschold 1888

G. †Spiraxis Newberry 1885

G. †Syntomodus Obruchev 1964

G. †Paredestus Mutter and Neuman 2008

†Paredestus bricircum Mutter and Neuman 2008

Fm. †Helicampodontidae Itano and Lebedev 2023

G. †Helicampodus Branson 1935

†Helicampodus egloni Obruchev 1965

†Helicampodus kokeni Branson 1935

†Helicampodus qomolangma Zhang 1976

G. †Hunanohelicoprion Liu 1994

†Hunanohelicoprion xiandongensis Liu 1994

G. †Parahelicampodus Nielsen 1952

†Parahelicampodus sparcki Nielsen 1952

G. †Sinohelicoprion Liu and Chang 1963

†Sinohelicoprion changhsingensis Liu and Chang 1963

†Sinohelicoprion macrodontus Lei 1983

Fm. †Helicoprionidae Karpinsky 1911

G. †Helicoprion Karpinsky 1899

†Helicoprion bessonowi Karpinsky 1899

Invalid names: Helicoprion nevadensis Wheeler 1939 [synonym]

†Helicoprion davisii Woodward 1886

Invalid names: Helicoprion jingmenense Chen et al. 2007 [synonym], Helicoprion sierrensis Wheeler 1939 [synonym], Lissoprion ferrieri Hay 1907 [synonym]

†Helicoprion ergassaminon Bendix-Almgreen 1966

Invalid names: Lissoprion Hay 1907 [synonym]

G. †Karpinskiprion Lebedev and Itano 2023

†Karpinskiprion ivanovi Karpinsky 1924

Invalid names: Agassizodontidae Zangerl 1981 [synonym]

G. †Pseudodontichthys

Invalid names: Campyloprion Eastman 1902 [nomen dubium], Campyloprion annectans Eastman 1902 [nomen dubium], Edistidae Jaekel 1899 [empty]

Or. †Helodontiformes

Fm. †Helodontidae

G. †Helodus Agassiz 1838

†Helodus angulatus Newberry and Worthen 1866

†Helodus biformis Newberry and Worthen 1866

†Helodus carbonarius Newberry and Worthen 1866

†Helodus coniculus Newberry and Worthen 1866

†Helodus consolidatus Newberry and Worthen 1866

†Helodus crenulatus Newberry and Worthen 1866

†Helodus denshumani Newberry and Worthen 1866

†Helodus denticulatus Newberry and Worthen 1866

†Helodus didymus Agassiz 1843

†Helodus elytra Newberry and Worthen 1866

†Helodus gibberulus Agassiz 1836

†Helodus gibbus Leidy 1857

†Helodus incisus Eastman 1903

†Helodus laevis Newberry 1879

†Helodus limax Newberry and Worthen 1866

†Helodus mammillaris Agassiz 1843

†Helodus planus Agassiz 1843

†Helodus politus Newberry and Worthen 1866

†Helodus rudis M'Coy 1848

†Helodus rugosus Newberry and Worthen 1870

†Helodus simplex Agassiz 1838

†Helodus subpolitus Branson 1916

†Helodus subteres Agassiz 1836

†Helodus sulcatus Newberry and Worthen 1866

†Helodus undulatus Newberry and Worthen 1866

†Helodus wortheni Hay 1899

Superor. †Holocephalomorpha Lund 1986

Or. Chimaeriformes Obruchev 1953 [chimaera]

G. †Arctacanthus Nielsen 1932

†Arctacanthus exiguus Yamagishi 2004

†Arctacanthus multisectus Branson 1933

†Arctacanthus phosphoriensis Branson 1930

†Arctacanthus spitzbergensis Hulke 1873

†Arctacanthus uncinatus Nielsen 1932

†Arctacanthus wyomingensis Branson 1934

Invalid names: Dolophonodus uncinatus Branson 1933 [replaced]

Invalid names: Ancistriodus Branson 1933 [synonym], Dolophonodus Branson 1933 [synonym], Hamatus Branson 1930 [synonym]

Fm. Callorhynchidae Garman 1901 [plownose chimaera]

G. †Bathytheristes Duffin 1995

Subfm. Callorhynchinae Garman 1901

G. Callorhynchus Cuvier 1829

G. †Edaphadon Buckland 1838

G. †Elasmodus Egerton

Invalid names: Psaliodus Agassiz 1843 [synonym]

G. †Ischyodus Egerton 1843

Invalid names: Edaphodontinae Stahl 1999 [empty]

Fm. Chimaeridae

G. †Bryactinus Cope 1875

G. †Canadodus Popov et al. 2020

G. Chimaera Linnaeus 1758

G. †Elasmodectes Woodward 1888

G. †Hedronchus Cope 1876

G. †Hydrolagus Gill 1862

G. †Isotaenia Cope 1875

G. †Leptomylus Cope 1869

G. †Mylognathus Leidy 1856

G. †Similihariotta Zangerl 1979

G. †Sphagepoea Cope 1869

Subor. Chimaeroidei

G. †Anteliochimaera Tanaka 1909

Fm. Callorhinchidae Garman 1901 [plownose chimaera]

Superfm. Callorhinchoidea

G. †Chalcodus Zittel 1887

Superfm. Chimaeroidea

G. †Eomanodon Ward and Duffin 1989

Fm. Rhinochimaeridae

G. †Crassidonta Branson 1916

†Crassidonta stuckenbergi Branson 1916

†Crassidonta subcrenulata Teichert 1943

Subor. †Echinochimaeroidei

Fm. †Echinochimaeridae

G. †Icthypriapus

Subor. †Myriacanthoidei Patterson 1965

Fm. †Chimaeropsidae

Fm. †Myriacanthidae Woodward 1889

Invalid names: Acanthorhinidae Patterson 1965 [synonym]

Invalid names: Chimeroidei Patterson 1965 [empty], Myracanthiodei [empty], Squalorajoidei Patterson 1965 [empty]

Or. †Chondrenchelyiformes Moy-Thomas 1939

Fm. †Chondrenchelyidae Berg 1940

G. †Chondrenchelys Traquair 1888

G. †Harpagofututor Lund 1982

G. †Platyxystrodus Hay 1899

Invalid names: Xystrodus Morris and Roberts 1862 [replaced]

Or. †Cochliodontiformes Obruchev 1953

Fm. †Cochliodontidae Owen 1867

G. †Aspidodus Newberry and Worthen 1866

G. †Chitonodus Stjohn and Worthen 1883

G. †Cochliodus Agassiz 1838

G. †Cranodus Trautschold 1879

G. †Cyrtonodus Davis 1884

G. †Deltodopsis St John and Worthen 1883

G. †Deltodus Morris and Roberts 1862

G. †Dichelodus Giebel 1857

G. †Diplacodus Davis 1884

G. †Erismacanthus M'Coy 1848

G. †Helodopsis Waagen 1879

G. †Icanodus Miller 1892

Invalid names: Tomodus Davis 1883 [replaced]

G. †Orthopleurodus St John and Worthen 1880

G. †Oxytomodus Trautschold 1880

G. †Paecilodus Agassiz 1843

G. †Periplectrodus St John and Worthen 1875

G. †Platyodus Newberry 1875

G. †Pleurodus Agassiz 1843

G. †Pleuroplax Woodward 1889

G. †Poecilodus Agassiz 1843

G. †Rhamphodus Davis 1883

G. †Sandalodus Newberry and Worthen 1866

G. †Stenopterodus St John and Worthen 1883

G. †Streblodus Agassiz 1843

G. †Taeniodus St John and Worthen 1883

G. †Trigonodus Newberry and Worthen 1866

G. †Vaticinodus St John and Worthen 1883

G. †Venustodus St. John and Worthen 1875

G. †Xystrodus Plieninger 1860

Fm. †Psephodontidae Zangerl 1981

G. †Kanodus Lebedev 2014

G. †Psephodus Morris and Roberts 1862

G. †Solenodus Trautschold 1874

†Solenodus crenulatus Trautschold 1874

Or. †Copodontiformes Obruchev 1953

Fm. †Copodontidae Davis 1883

G. †Copodus Morris and Roberts 1862

G. †Melanodus Darras et al. 2008

Or. †Menaspiformes

Fm. †Deltoptychiidae Zangerl 1981

G. †Deltoptychius Morris and Roberts 1862

Fm. †Menaspidae Woodward 1891

G. †Menaspis Ewald 1848

Fm. †Traquairiidae Lund and Grogan 1997

G. †Traquairius Lund and Grogan 1997

Or. †Psammodontiformes Obruchev 1953

Fm. †Psammodontidae

G. †Apodometes Gistel 1848

G. †Archaeobatis Newberry 1878

G. †Astrabodus Davis 1884

G. †Dimyleus Davis 1883

G. †Homalodus Davis 1883

G. †Mazodus Newberry 1899

G. †Mylacodus Davis 1883

G. †Mylax Morris and Roberts 1883

G. †Pinacodus Davis 1883

G. †Pleurogomphus Agassiz 1862

G. †Psammodus Agassiz 1834

G. †Rhymodus Davis 1883

Or. †Squalorajiformes Patterson 1965

Fm. †Squalorajidae Woodward 1886

G. †Squaloraja Riley 1833

Invalid names: Spinacorhinus Agassiz 1836 [synonym]

G. †Macrodontacanthus Romer 1942

†Macrodontacanthus kingi Romer 1942

G. †Menaspacanthus Patterson 1965

Or. †Orodontiformes Zangerl 1981

Fm. †Leiodontidae Ginter et al. 2010

G. †Cristatodens Ginter and Sun 2007

G. †Leiodus Saint John and Worthen 1875

†Leiodus calcaratus Saint John and Worthen 1875

†Leiodus grossipunctatus Saint John and Worthen 1875

Fm. †Orodontidae de Koninck 1878

G. †Adiapneustes Gistel 1848

G. †Eoorodus Branson 1914

G. †Hercynolepis Gross 1973

G. †Lophodus

G. †Octinapsis Trautschold 1874

G. †Orodus Agassiz 1836

†Orodus alleni Saint John and Worthen 1875

†Orodus carinatus Saint John and Worthen 1875

†Orodus catenatus Davis 1883

†Orodus cinctus Agassiz 1836

†Orodus colletti Newberry 1879

†Orodus daedalus Saint John and Worthen 1875

†Orodus decussatus Saint John and Worthen 1875

†Orodus elegantulus Newberry and Worthen 1866

†Orodus elongatus Davis 1883

†Orodus fastigiatus Saint John and Worthen 1875

†Orodus gibbosus Newberry and Worthen 1866

†Orodus gibbus Davis 1883

†Orodus greggi Zangerl 1981

†Orodus intermedius Eastman 1903

†Orodus ipeunaensis Chahud et al. 2010

†Orodus major Saint John and Worthen 1875

†Orodus mammillaris Newberry and Worthen 1866

†Orodus micropterygius Zangerl 1981

†Orodus minutus Newberry and Worthen 1866

†Orodus moniliformis Davis 1883

†Orodus neglectus Saint John and Worthen 1875

†Orodus ornatus Newberry and Worthen 1866

†Orodus parallelus Saint John and Worthen 1875

†Orodus parvulus Saint John and Worthen 1875

†Orodus plicatus Newberry and Worthen 1866

†Orodus ramosus Agassiz 1836

†Orodus tenuis Woodward 1889

†Orodus tuberculatus Newberry and Worthen 1866

†Orodus turgidus Saint John and Worthen 1875

†Orodus variabilis Newberry 1875

†Orodus varicostatus Saint John and Worthen 1875

Or. †Petalodontiformes Zangerl 1981

Fm. †Belantseidae Lund 1989

G. †Belantsea Lund 1989

†Belantsea montana Lund 1989

†Belantsea occidentalis St. John and Worthen 1875

G. †Ctenoptychius Agassiz 1838

†Ctenoptychius acuminatus Saint John and Worthen 1875

†Ctenoptychius apicalis Agassiz 1838

†Ctenoptychius cristatus Dawson 1868

†Ctenoptychius dentatus Owen 1840

†Ctenoptychius digitatus Leidy 1857

†Ctenoptychius lobatus Etheridge 1875

†Ctenoptychius pertenius Saint John and Worthen 1875

†Ctenoptychius serratus Owen 1840

†Ctenoptychius stevensoni St. John and Worthen 1875

G. †Netsepoye Lund 1989

†Netsepoye hawesi Lund 1989

Fm. †Janassidae Jaekel 1899

Subfm. †Cholodinae Hodnett et al. 2024

G. †Cavusodus Itano 2023

G. †Cholodus John and Worthen 1875

G. †Cypripediodens Duffin and Ward 2017

G. †Ctenopetalus Agassiz 1837

†Ctenopetalus bellulus Saint John and Worthen 1875

†Ctenopetalus limatulus Saint John and Worthen 1875

†Ctenopetalus medius Saint John and Worthen 1875

†Ctenopetalus vinosus Saint John and Worthen 1875

G. †Cymatodus Newberry and Worthen 1870

Cymatodus oblongus Newberry and Worthen 1870

G. †Dactylodus

†Dactylodus excavatus Saint John and Worthen 1866

†Dactylodus princeps Newberry and Worthen 1866

G. †Fissodus St. John and Worthen 1875

Fissodus bifidus Saint John and Worthen 1875

†Fissodus dentatus Eastman 1903

†Fissodus inaequalis Stjohn and Worthen 1875

G. †Gamphacanthus Miller 1892

†Gamphacanthus politus Newberry 1889

†Gamphacanthus uddeni Lindahl 1897

G. †Gomphacanthus Davis 1884

Subfm. †Janassinae Hodnett et al. 2024

G. †Janassa

Invalid names: Byzenos Münster 1843 [synonym], Climaxodus McCoy 1848 [synonym], Dictea Münster 1840 [synonym]

G. †Strigilodus Hodnett et al. 2024

G. †Petalodopsis Barkas 1874

†Petalodopsis mirabilis Barkas 1874

†Petalodopsis tripartitis Davis 1833

G. †Phoderacanthus Davis 1883

G. †Platacanthus M'Coy 1848

G. †Pnigeacanthus St John and Worthen 1883

G. †Pristicladodus M'Coy 1848

†Pristicladodus goughi M'Coy 1848

G. †Stichacanthus Koninck 1878

†Stichacanthus coemansi Koninck 1878

†Stichacanthus tortworthensis Davis 1883

G. †Thoracodus Cope 1883

†Thoracodus emydinus Cope 1883

G. †Paracymatodus

Fm. †Petalodontidae Newberry and Worthen 1866

G. †Antliodus Newberry and Worthen 1866

†Antliodus arcuatus Newberry 1889

†Antliodus cucullus Newberry and Worthen 1866

†Antliodus gracilis Saint John and Worthen 1875

†Antliodus mucronatus Newberry and Worthen 1866

†Antliodus parvulus Newberry and Worthen 1866

†Antliodus perovalis Saint John and Worthen 1875

†Antliodus politus Newberry and Worthen 1866

†Antliodus robustus Newberry and Worthen 1866

†Antliodus sarcululus Newberry and Worthen 1870

†Antliodus similis Newberry and Worthen 1866

†Antliodus simplex Newberry and Worthen 1866

†Antliodus sulcatus Newberry and Worthen 1866

G. †Chomatodus Agassiz 1838

†Chomatodus affinis Newberry and Worthen 1866

†Chomatodus angustus Newberry 1879

†Chomatodus chesterensis Saint John and Worthen 1875

†Chomatodus cinctus Agassiz 1838

†Chomatodus comptus Saint John and Worthen 1875

†Chomatodus costatus Newberry and Worthen 1866

†Chomatodus cultellus Newberry and Worthen 1866

†Chomatodus denticulatus M'Coy 1848

†Chomatodus elegans Newberry and Worthen 1866

†Chomatodus inconstans Saint John and Worthen 1875

†Chomatodus incrassatus Saint John and Worthen 1875

†Chomatodus insignis Leidy 1857

†Chomatodus linearis Agassiz 1836

†Chomatodus loriformis Newberry and Worthen 1866

†Chomatodus molaris Newberry and Worthen 1866

†Chomatodus newberryi Hay 1902

†Chomatodus oliquus M'Coy 1848

†Chomatodus parallelus Saint John and Worthen 1875

†Chomatodus pusillus Newberry and Worthen 1866

†Chomatodus selliformis Newberry 1879

†Chomatodus truncatus Agassiz 1843

†Chomatodus varsouviensis Saint John and Worthen 1875

G. †Glossodus M'Coy 1848

†Glossodus heckelii Costa 1864

†Glossodus lingusbovis Mcoy 1848

†Glossodus marginatus M'Coy 1848

G. †Glyphanodus Davis 1883

G. †Harpacodus St. John and Worthen 1875

†Harpacodus clavatus Davis 1883

†Harpacodus compactus St. John and Worthen 1875

†Harpacodus dentatus Davis 1883

†Harpacodus occidentalis St. John and Worthen 1875

G. †Itapyrodus Silva Santos 1990

†Itapyrodus punctatus Silva Santos 1990

G. †Lisgodus Saint John and Worthen 1875

†Lisgodus affinis Newberry 1879

†Lisgodus curtus Saint John and Worthen 1875

†Lisgodus selluliformis Saint John and Worthen 1875

†Lisgodus serratus Saint John and Worthen 1875

G. †Neopetalodus Murata and Uyeno 1979

G. †Peltodus Newberry and Worthen 1870

Peltodus plicomphalus Saint John and Worthen 1875

Peltodus pulvinulus Newberry and Worthen 1870

Peltodus quadratus Saint John and Worthen 1875

Peltodus transversus Saint John and Worthen 1875

†Peltodus unguiformis St John and Worthen 1870

G. †Petalodus

†Petalodus acuminatus Agassiz 1838

†Petalodus allegheniensis Leidy 1856

Invalid names: Petalodus destructor Newberry and Worthen 1870 [synonym], Sicarius extinctus Leidy 1856 [synonym]

†Petalodus arcuatus St. John 1870

†Petalodus curtus Newberry and Worthen 1870

†Petalodus davisii Woodward 1889

†Petalodus flabellula Woodward 1889

†Petalodus grandis Davis 1883

†Petalodus hastingsiae Owen 1840

†Petalodus hybridus Saint John and Worthen 1875

†Petalodus jewetti Miller 1957

†Petalodus knappi Newberry 1879

†Petalodus linguifer Newberry and Worthen 1866

†Petalodus ohioensis Safford 1853

†Petalodus proximus Saint John and Worthen 1875

†Petalodus sagittatus Agassiz 1843

Invalid names: Sicarius Leidy 1856 [synonym]

G. †Polyrhizodus M'Coy 1848

†Polyrhizodus attenuatus Davis 1883

†Polyrhizodus carbonarius Saint John and Worthen 1875

†Polyrhizodus colei Davis 1883

†Polyrhizodus concavus Trautschold 1874

†Polyrhizodus dentatus Newberry and Worthen 1866

†Polyrhizodus digitatus Leidy 1857

Invalid names: Polyrhizodus amplus St. John and Worthen 1875 [synonym], Polyrhizodus excavatus Saint John and Worthen 1866 [synonym], Polyrhizodus littoni Newberry and Worthen 1870 [synonym], Polyrhizodus lobatus Newberry and Worthen 1866 [synonym], Polyrhizodus princeps Newberry and Worthen 1866 [synonym], Polyrhizodus williamsi St. John and Worthen 1875 [synonym]

†Polyrhizodus elongatus Davis 1883

†Polyrhizodus inflexus Newberry and Worthen 1866

†Polyrhizodus latus Newberry 1897

†Polyrhizodus magnus M'Coy 1848

†Polyrhizodus minimus Saint John and Worthen 1875

†Polyrhizodus modestus Newberry 1875

†Polyrhizodus nanus Saint John and Worthen 1875

†Polyrhizodus piasaensis Saint John and Worthen 1875

†Polyrhizodus ponticulus Newberry and Worthen 1866

†Polyrhizodus porosus Newberry and Worthen 1866

†Polyrhizodus pusillus M'Coy 1848

†Polyrhizodus rectus Newberry 1897

†Polyrhizodus truncatus Newberry and Worthen 1870

G. †Strigilina Cope 1877

†Strigilina linguaeformis Cope 1877

G. †Tanaodus St. John and Worthen 1875

Tanaodus angularis Newberry and Worthen 1866

Tanaodus bellcinctus Saint John and Worthen 1875

Tanaodus depressus Saint John and Worthen 1875

Tanaodus gracillimus Newberry and Worthen 1866

Tanaodus grossiplicatus Saint John and Worthen 1875

Tanaodus multiplicatus Newberry and Worthen 1866

Tanaodus obscurus Leidy 1857

Tanaodus polymorphus Saint John and Worthen 1875

Tanaodus praenuntius Saint John and Worthen 1875

Tanaodus pumilis Saint John and Worthen 1875

Tanaodus sculptus Saint John and Worthen 1875

Tanaodus sublunatus Saint John and Worthen 1875

†Tanaodus wisei Traquair 1901

Fm. †Pristodontidae Woodward 1889

G. †Calopodus John and Worthen 1875

†Calopodus apicalis Saint John and Worthen 1875

G. †Davodus Hansen 1985

G. †Megactenopetalus David 1944

†Megactenopetalus kaibabanus David 1944

Invalid names: Petalodus shingkuoi Young 1950 [synonym]

G. †Peripristis St. John 1870

†Peripristis semicircularis Newberry and Worthen 1866

G. †Petalorhynchus Newberry and Worthen 1866

†Petalorhynchus beargulchensis Lund 1989

Petalorhynchus distortus Saint John and Worthen 1875

†Petalorhynchus indicus Waagen 1879

Petalorhynchus pseudosagittatus Saint John and Worthen 1875

†Petalorhynchus psittacinus Agassiz 1843

Petalorhynchus spatulatus Saint John and Worthen 1875

Petalorhynchus striatus Newberry and Worthen 1866

G. †Pristodus Davis 1883

†Pristodus benniei Etheridge 1875

†Pristodus concinnus Davis 1883

†Pristodus falcatus Davis 1883

G. †Siksika Lund 1989

†Siksika ottae Lund 1989

Invalid names: Peripristidae Eastman 1902 [synonym]

G. †Serratodus

G. †Thoralodus

Invalid names: Bradyodonti Arambourg and Bertin 1958 [synonym], Chimaeri Jaekel 1911 [empty], Debeeriformes [empty], Euchondrocephali Lund and Grogan 1997 [synonym], Iniopterygiformes Zangerl and Case 1973 [empty], Paraselachiamorpha Lund 1977 [empty], Paraselachimorpha Lund 1977 [invalid subgroup], Trachyacanthi Jaekel 1911 [empty]

Infracl. †Holocephalimorpha Lund 1986

G. †Harpacanthus Traquair 1886

†Harpacanthus fimbriatus Traquair 1886

Invalid names: Harpacanthidae Lund and Grogan 1997 [empty]

Or. †Iniopterygia Zangerl and Case 1973

Fm. †Iniopterygidae Zangerl and Case 1973

G. †Cervifurca Zangerl 1997

†Cervifurca nasuta Zangerl 1997

G. †Iniopteryx

†Iniopteryx rushlaui Zangerl and Case 1973

†Iniopteryx tedwhitei Zangerl and Case 1973

G. †Papilionichthys Grogan and Lund 2009

†Papilionichthys stahlae Grogan and Lund 2009

G. †Promexyele Zangerl and Case 1973

†Promexyele bairdi Zangerl and Case 1973

†Promexyele peyeri Zangerl and Case 1973

G. †Rainerichthys Grogan and Lund 2009

†Rainerichthys zangerli Grogan and Lund 2009

G. †Inioxyle

Fm. †Sibyrhynchidae Zangerl and Case 1973

G. †Iniopera Zangerl and Case 1973

†Iniopera richardsoni Zangerl and Case 1973

G. †Inioxyele Zangerl and Case 1973

†Inioxyele whitei Zangerl and Case 1973

G. †Sibyrhynchus Zangerl and Case 1973

†Sibyrhynchus denisoni Zangerl and Case 1973

G. †Leonotus

G. †Machichnus Mikulas et al. 2006

†Machichnus bohemicus Mikulas et al. 2006

Or. †Mongolepidida Karatujute-Talimaa et al. 1990

Fm. †Mongolepididae Karatujute-Talimaa et al. 1990

G. †Mongolepis Karatajute-Talimaa et al. 1990

G. †Rongolepis Sansom et al. 2000

†Rongolepis cosmetica Sansom et al. 2000

G. †Taklamakanolepis Andreev et al. 2020

†Taklamakanolepis asiaticus Andreev et al. 2020

Fm. †Shiqianolepidae Sansom et al. 2000

G. †Chenolepis Sansom et al. 2000

†Chenolepis asketa Sansom et al. 2000

G. †Shiqianolepis Sansom et al. 2000

†Shiqianolepis hollandi Sansom et al. 2000

G. †Tielikewatielepis Andreev et al. 2020

†Tielikewatielepis sinensis Andreev et al. 2020

G. †Xiaohaizilepis Andreev et al. 2020

†Xiaohaizilepis liui Andreev et al. 2020

G. †Xinjiangichthys Wang et al. 1998

†Xinjiangichthys pluridentatus Wang et al. 1998

Invalid names: Xinjiangichthys tarimensis Wang et al. 1998 [synonym]

G. †Obtusacanthus Hanke and Wilson 2004

†Obtusacanthus corroconis Hanke and Wilson 2004

G. †Plesioselachus Anderson et al. 1999

†Plesioselachus macracanthus Anderson 1990

G. †Proprigalea Johns 1997

†Proprigalea languidula Johns 1997

†Proprigalea mediglabra Johns 1997

†Proprigalea medirugosa Johns 1997

G. †Ptomacanthus Miles 1973

†Ptomacanthus anglicus Miles 1973

Fm. †Pucapampellidae Maisey et al. 2018

G. †Gydoselache Maisey et al. 2018

†Gydoselache oosthuizeni Maisey et al. 2018

G. †Pucapampella Janvier and Riglos 1986

†Pucapampella rodrigae Janvier and Riglos 1986

G. †Pucapumpella Maisey and Anderson 2001

G. †Qianodus Andreev et al. 2022

†Qianodus duplicis Andreev et al. 2022

G. †Shenacanthus Zhu et al. 2022

†Shenacanthus vermiformis Zhu et al. 2022

G. †Simmorius

Or. †Sinacanthida Andreev et al. 2020

Fm. †Sinacanthidae Min 1998

G. †Neosinacanthus P'an and Liu 1975

†Neosinacanthus planispinatus P'an and Liu 1975

G. †Sinacanthus P'an Kiang 1959

†Sinacanthus triangulatus P'an and Liu 1975

†Sinacanthus wuchangensis P'an Kiang 1958

Invalid names: Sinacanthus fancunensis Liu 1973 [synonym]

G. †Tarimacanthus Min 1998

†Tarimacanthus bachuensis Min 1998

G. †Thaumatacanthus Waagen 1880

†Thaumatacanthus blanfordi Waagen 1880

G. †Yuanolepis Andreev et al. 2020

†Yuanolepis bachunensis Andreev et al. 2020

Invalid names: Clamydoselachidae [empty], Ctenacanthimorpha [empty], Ctenoptychius ordii Davis 1881 [nomen dubium], Desmiodontida Zangerl 1981 [empty], Kathemacanthidae [empty], Polymerolepidiformes [empty], Rhinobatiformes Müller and Henle 1837 [empty], Subterbranchialia Zangerl 1979 [empty]

Diagnosis

No diagnoses are available