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Placodermi (armour-plated fish)

Placodermi

Taxonomy

Placodermi was named by M'Coy (1848).

It was reranked as the superorder Placodermi by Hay (1902); it was reranked as the subclass Placodermata by Jaekel (1911); it was reranked as the subclass Placodermi by Bryant (1932); it was reranked as the unranked clade Placodermi by Säve-Söderbergh (1934).

It was assigned to Azygostei by Hay (1902); to Hypostomata by Jaekel (1911); to Elasmobranchii by Bryant (1932); to Elasmobranchii by Säve-Söderbergh (1934); to Gnathostomata by Denison (1975); to Gnathostomata by Dineley and Metcalf (1999); to Chordata by Sepkoski (2002); to Vertebrata by Kiessling (2004); and to Placodermiomorphi by Long (2011) and Nelson et al. (2016).

Synonymy list

Year	Name and author
1848	Placodermi M'Coy
1902	Placodermi Hay p. 342
1911	Placodermata Jaekel p. 44
1932	Placodermi Bryant p. 232
1934	Placodermi Säve-Söderbergh p. 17
1975	Placodermi Denison p. 23
1999	Placodermi Dineley and Metcalf p. 11
2002	Placodermi Sepkoski
2004	Placodermi Kiessling
2011	Placodermi Long p. 241
2016	Placodermi Nelson et al. p. 36

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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
—	Placodermiomorphi
class	Placodermi	M'Coy 1848
class	Placodermi	M'Coy 1848

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. †Placodermi M'Coy 1848 [armour-plated fish]

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Or. †Acanthothoraci Stensiö 1944

G. †Breizosteus Goujet 1980

G. †Murrindalaspis Long 1984

Fm. †Palaeacanthaspidae Stensio 1944

G. †Arabosteus Olive et al. 2011

†Arabosteus variabilis Olive et al. 2011

G. †Dobrowlania Stensiö 1944

†Dobrowlania podolica Stensio 1944

G. †Kimaspis Mark-Kurik 1973

†Kimaspis tienshanica Mark-Kurik 1973

G. †Kolymaspis Bystrow 1956

†Kolymaspis siberica Bystrow 1956

G. †Kosoraspis Gross 1959

†Kosoraspis peckai Gross 1959

G. †Palaeacanthaspis Brotzen 1934

†Palaeacanthaspis vasta Brotzen 1934

G. †Radotina Gross 1950

†Radotina kosorensis Gross 1950

†Radotina prima Barrande 1872

†Radotina tessellata Gross 1958

G. †Romundina Orvig 1975

†Romundina stellina Orvig 1975

G. †Weejasperaspis White 1978

Invalid names: Kolymaspidae Bystrow 1956 [empty], Radotinidae Arambourg 1958 [empty]

Or. †Antiarcha Cope 1885

G. †Grossaspis White and Moy-Thomas 1940

†Grossaspis carinata Schluter 1887

Invalid names: Ceraspis Schlüter 1887 [replaced]

G. †Jiangxilepis Zhang and Liu 1991

G. †Lepadolepis White and Moy-Thomas 1940

†Lepadolepis stensioei Gross 1933

Invalid names: Ceratolepis Gross 1933 [replaced]

G. †Liujiangolepis Wang 1987

G. †Macrodontophion Zborzewski 1834

G. †Microbrachius Traquair 1888

†Microbrachius dicki Traquair 1888

G. †Phymolepis Zhang 1978

G. †Pterichthyodid

†Pterichthyodid anitarch Turner et al. 1981

Fm. †Silurolepidae Zhang et al. 2010

G. †Silurolepis Zhang et al. 2010

†Silurolepis platydorsalis Zhang et al. 2010

G. †Taeniolepis Gross 1932

†Taeniolepis speciosa Gross 1932

G. †Xichonolepis Pan and Wang 1978

G. †Zhanjilepis Zhang 1978

Invalid names: Antiarchi Cope 1885 [synonym], Yunnanolepiformes Zhang 1978 [empty]

Or. †Antiarchiformes Grande and Eastman 1986

Subor. †Bothriolepidoidei Cope 1886

Infraor. †Sinolepidida

Fm. †Sinolepidae Liu and P'an 1958

G. †Sinolepis Liu and P'an 1958

Subor. †Yunnanolepidoidei

Fm. †Chuchinolepidae Chang 1978

G. †Chuchinolepis Chang 1978

†Chuchinolepis dongmoensis Thanh and Janvier 1990

†Chuchinolepis gracilis Chang 1978

Invalid names: Orientolepis neokwangsiensis P 'an and Wang 1978 [synonym]

†Chuchinolepis qujingensis Zhang 1984

†Chuchinolepis robusta Zhu 1996

Invalid names: Orientolepis P'an and Wang 1978 [synonym], Procondylolepis Zhang 1984 [synonym], Qujinolepis Zhang 1978 [synonym]

Infraor. †Euantiarcha Janvier and Pan 1982

Fm. †Asterolepididae Traquair 1888

G. †Asterolepis Eichwald 1840

G. †Byssacanthus Agassiz 1845

G. †Gerdalepis Hoffmann 1916

G. †Pterichthyodes Bleeker 1859

G. †Pterichthys Agassiz 1843

G. †Remigolepis Stensio 1931

G. †Stegolepis Malinovskaja 1973

Invalid names: Pterichthyidae [synonym]

Fm. †Bothriolepididae Cope 1886

G. †Grossilepis Stensiö 1948

Invalid names: Gerdalepididae [empty], Microbrachiidae [empty]

Fm. †Yunnanolepididae Zhang 1978

G. †Heteroyunnanolepis Wang 1994

G. †Parayunnanolepis Zhang et al. 2001

G. †Yunnanolepis Liu 1963

†Yunnanolepis bacboensis Thanh and Janvier 1990

†Yunnanolepis chii Liu 1963

†Yunnanolepis deprati Thanh and Janvier 1990

Invalid names: Chuchinolepididae [empty], Yunnanolepida [synonym]

Invalid names: Bothriolepoidei [empty]

Or. †Arthrodira Woodward 1891

Fm. †Acanthaspida Heintz 1921

G. †Euryaspis Bryant 1932

†Euryaspis brachycephalus Bryant 1932

G. †Svalbardaspis Heintz 1929

†Svalbardaspis montanus Bryant 1932

Subor. †Actinolepina Miles 1973

Fm. †Actinolepidae Gross 1940

G. †Actinolepis Agassiz 1845

†Actinolepis magna Mark-Kurik 1973

†Actinolepis spinosa Mark-Kurik 1985

†Actinolepis tuberculata Agassiz 1845

†Actinolepis zaikai Plax and Newman 2020

G. †Aethaspis Denison 1958

†Aethaspis major Denison 1958

†Aethaspis utahensis Denison 1958

G. †Ailuracantha White 1969

†Ailuracantha dorsifelis White 1969

G. †Aleosteus Johnson et al. 2000

†Aleosteus eganensis Johnson et al. 2000

G. †Anarthraspis Bryant 1934

†Anarthraspis chamberlini Bryant 1932

†Anarthraspis montanus Bryant and Ruedemann 1934

G. †Baringaspis Miles 1973

†Baringaspis dineleyi Miles 1973

G. †Bollandaspis Schmidt 1976

†Bollandaspis woschmidti Schmidt 1976

G. †Bryantolepis Denison 1958

†Bryantolepis brachycephala Bryant 1932

†Bryantolepis cristata Bryant 1934

†Bryantolepis williamsi Elliott and Carr 2010

G. †Heightingtonaspis White 1969

†Heightingtonaspis anglica Traquair 1890

†Heightingtonaspis clarkei Eastman 1907

†Heightingtonaspis willsi White 1961

G. †Kujdanowiaspis Stensiö 1942

†Kujdanowiaspis buczacziensis Brotzen 1934

†Kujdanowiaspis podolica Brotzen 1934

†Kujdanowiaspis rectiformis Brotzen 1934

G. †Lataspis Strand 1932

†Lataspis brevicornis Heintz 1929

†Lataspis rotundicomis Heintz 1929

G. †Lehmanosteus Goujet 1984

†Lehmanosteus hyperboreus Goujet 1984

G. †Mediaspis Heintz 1929

†Mediaspis problematica Heintz 1929

G. †Proaethaspis Denison 1978

†Proaethaspis ohioensis Denison 1960

G. †Sigaspis Goujet 1973

†Sigaspis lepidophora Goujet 1973

G. †Simblaspis Denison 1958

†Simblaspis cachensis Denison 1958

G. †Stuertzaspis Westoll and Miles 1963

†Stuertzaspis germanica Traquair 1903

G. †Szelepis Liu 1979

†Szelepis yunnanensis Liu 1979

G. †Africanaspis Long et al. 1997

G. †Antarctolepis White 1968

†Antarctolepis gunni White 1968

Fm. †Arctolepidae Heintz 1937

G. †Plataspis Westwood 1837

G. †Arctonema Orvig 1969

†Arctonema crassum Orvig 1969

G. †Arenipiscis Young 1981

G. †Aspidichthys Newberry 1873

†Aspidichthys clavatus Newberry 1873

†Aspidichthys ingens Koenen 1883

†Aspidichthys notabilis Whiteaves 1892

G. †Atlantidosteus Lelievre 1984

Subor. †Brachythoraci Gross 1932

Superfm. †Brachydeiroidea Denison 1978

Fm. †Brachydeiridae Gross 1932

G. †Brachydeirus Koenen 1880

G. †Oxyosteus Jaeckel 1911

G. †Synauchenia Jaeckel 1919

Fm. †Leptosteidae Jaekel 1911

G. †Leptosteus Jaeckel 1919

Superfm. †Buchanosteoidea Denison 1978

Fm. †Buchanosteidae White 1952

G. †Buchanosteus Stensiö 1945

G. †Parabuchanosteus White and Toombs 1972

Fm. †Williamsaspidae White 1952

G. †Williamsaspis White 1952

Superfm. †Coccosteoidea Denison 1978

Fm. †Coccosteidae Asmuss 1856

G. †Agassichthys Newberry 1857

G. †Anomalichthys Koenen 1883

G. †Aspidophorus Newberry 1870

G. †Asteroplax Woodward 1891

G. †Belgiosteus Lehman 1973

G. †Brachydirus Koenen 1880

G. †Clarkeosteus Obruchev 1964

G. †Coccosteus Agassiz 1843

G. †Dickosteus Miles and Westoll 1963

G. †Eldenosteus Hussakof 1942

G. †Lispognathus Miller 1892

G. †Livosteus Obrucheva 1962

G. †Millerosteus Stensio 1959

G. †Phlyctaenaspis Traquair 1890

G. †Physichthys Meyer 1855

G. †Plourdosteus Orvig 1951

G. †Ponerichthys Miller 1892

G. †Siphonodus Fischer von Waldheim 1852

G. †Watsonosteus Miles and Westoll 1963

G. †Woodwardosteus White and Moy-Thomas 1940

Invalid names: Coccosteinae Hay 1902 [empty]

Fm. †Gemuendenaspidae Miles 1962

G. †Gemuendenaspis Miles 1962

Fm. †Pholidosteidae Gross 1932

G. †Malerosteus Kulczycki 1957

G. †Pholidosteus Jaeckel 1907

G. †Tapinosteus

Superfm. †Dinichthyoidea Denison 1978

Fm. †Leiosteidae Stensiö 1963

G. †Erromenosteus Jaeckel 1919

Fm. †Trematosteidae Gross 1932

G. †Belosteus Jaeckel 1927

G. †Brachyosteus Jaeckel 1927

G. †Cyrtosteus Gross 1932

G. †Parabelosteus

G. †Trematosteus Jaeckel 1927

Superfm. †Heterosteoidea Denison 1984

Fm. †Heterosteidae Jaekel 1903

G. †Herasmius Orvig 1969

G. †Heterosteus Asmuss 1856

Superfm. †Homosteoidea Denison 1978

Fm. †Homostiidae Jaekel 1903

G. †Angarichthys Obruchev 1927

G. †Antineosteus Lelievre 1984

G. †Euleptaspis White and Moy-Thomas 1940

G. †Lophostracon Lankester 1884

G. †Luetkeichthys Bystrow 1957

G. †Tityosteus Gross 1960

G. †Bruntonichthys Dennis and Miles 1980

G. †Bullerichthys Dennis and Miles 1980

Fm. †Bungartiidae Denison 1975

G. †Bungartius Dunkle 1947

†Bungartius penssus Dunkle 1947

G. †Burrinijucosteus

G. †Callognathus Newberry 1890

†Callognathus regularis Newberry 1889

†Callognathus serratus Newberry 1889

Fm. †Camuropiscidae Dennis and Miles 1979

G. †Camuropiscis Dennis and Miles 1979

†Camuropiscis concinnus Dennis and Miles 1979

†Camuropiscis laidlawi Dennis and Miles 1979

G. †Fallacosteus Long 1990

Or. †Coccosteina Heintz 1932

Invalid names: Euleptaspididae Obruchev 1964 [empty], Gemuendenaspoidea Denison 1978 [empty]

G. †Copanognathus Hussakof and Bryant 1920

†Copanognathus crassus Hussakof and Bryant 1919

G. †Cosmacanthus Agassiz 1845

†Cosmacanthus bullatus Saint John and Worthen 1875

†Cosmacanthus carinatus Davis 1883

†Cosmacanthus malcolmsoni Agassiz 1844

†Cosmacanthus marginalis Davis 1883

†Cosmacanthus priscus Mcoy 1848

†Cosmacanthus stellatus Saint John and Worthen 1875

G. †Cravenaspis Young and Goujet 2003

†Cravenaspis trematosus Young and Goujet 2003

G. †Diplognathus Newberry 1878

†Diplognathus mirabilis Newberry 1878

G. †Erikaspis Dupret et al. 2007

†Erikaspis zychi Dupret et al. 2007

G. †Errolosteus Young 1981

G. †Eskimaspis Dineley and Yuhai 1984

†Eskimaspis heintzi Dineley and Yuhai 1984

Superor. †Euarthrodira

Invalid names: Arctolepidida Obruchev 1964 [empty]

Unr. †Eubrachythoraci Miles 1971

Unr. †Aspinothoracidi Miles and Dennis 1979

Fm. †Dinichthyidae Newberry 1888

G. †Brachygnathus Agassiz 1843

G. †Brontichthys Claypole 1894

G. †Dinichthys Newberry 1868

G. †Eastmanosteus Obruchev 1964

G. †Holdenius Dunkle and Bungart 1942

G. †Hussakofia Cossman 1910

G. †Perissognathus Hussakof and Bryant

G. †Stenognathus Newberry 1889

G. †Westralichthys Long 1987

G. †Gorgonichthys Claypole 1892

†Gorgonichthys clarki Claypole 1892

G. †Hadrosteus Gross 1932

†Hadrosteus rapax Gross 1932

G. †Heintzichthys Whitley 1933

†Heintzichthys denticulatus Hussakof and Bryant 1919

†Heintzichthys dolichocephalus Eastman 1907

†Heintzichthys gouldii Newberry 1885

†Heintzichthys insignis Hussakof and Bryant 1919

†Heintzichthys mixeri Hussakof and Bryant 1919

†Heintzichthys ringuebergi Newberry 1889

G. †Homostius Asmuss 1840

†Homosteus arcticus Heintz 1934

†Homosteus formosissimus Asmuss 1856

†Homosteus kochi Stensio 1938

†Homosteus latus Asmuss 1856

†Homosteus manitobensis Okulitch 1944

†Homosteus milleri Traquair 1849

†Homosteus sulcatus Kutorga 1837

Unr. †Pachyosteomorphi Stensiö 1944

Superfm. †Dunkleosteoidea Vézina 1990

Fm. †Dunkleosteidae Stensiö 1963

Fm. †Panxiosteidae Wang 1979

G. †Kiangyousteus Liu 1955

†Kiangyousteus yohii Liu 1955

G. †Glyptaspis Newberry 1890

†Glyptaspis verrucosa Newberry 1889

G. †Goodradigbeeon White 1978

G. †Grazosteus Gross 1958

†Grazosteus hoernesi Gross 1958

Fm. †Groenlandaspididae Obruchev 1964

G. †Boomeraspis Long 1995

†Boomeraspis goujeti Long 1995

G. †Groenlandaspis Heintz 1932

†Groenlandaspis antarctica Ritchie 1975

†Groenlandaspis disjectus Woodward 1891

†Groenlandaspis mirabilis Heintz 1932

†Groenlandaspis riniensis Long et al. 1997

†Groenlandaspis seni Janvier and Ritchie 1977

G. †Mulgaspis Ritchie 2004

G. †Turrisaspis Daeschler et al. 2003

G. †Harrytoombsia Miles and Dennis 1979

G. †Heintzosteus Goujet 1984

†Heintzosteus brevis Goujet 1984

G. †Hollardosteus

†Hollardosteus marocanus Lehman 1976

Superfm. †Incisoscutoidea Long 1994

Fm. †Incisoscutidae Denison 1984

G. †Incisoscutum Dennis and Miles 1981

†Incisoscutum ritchiei Dennis and Miles 1981

†Incisoscutum sarahae Long 1994

Invalid names: Gogosteus Long 1994 [synonym]

Fm. †Plourdosteidae Vézina 1990

G. †Compagopiscis GARDINER and MILES 1994

†Compagopiscis croucheri GARDINER and MILES 1994

G. †Protitanichthys Eastman 1907

†Protitanichthys fossatus Eastman 1907

†Protitanichthys rockportensis Case 1931

G. †Kendrickichthys Dennis and Miles 1980

G. †Kimberleyichthys Dennis-Bryan and Miles 1983

Invalid names: Kimberia Dennis-Bryan and Miles 1983 [replaced]

G. †Kueichowlepis Pan and Wang 1975

G. †Latocamurus Long 1988

G. †Laurentaspis Pageau 1969

†Laurentaspis splendida Pageau 1969

G. †Lurapullaspis Young and Goujet 2003

†Lurapullaspis johannseni Young and Goujet 2003

G. †Machaerognathus Hussakof and Bryant 1919

†Machaerognathus woodwardi Hussakof and Bryant 1919

G. †Mcnamaraspis Long 1995

G. †Murmur Whitley 1951

†Murmur arcuatus Bryant 1935

Fm. †Mylostomatidae Woodward 1891

G. †Dinomylostoma Eastman 1906

†Dinomylostoma beecheri Eastman 1906

†Dinomylostoma buffaloensis Hussakof and Bryant 1919

†Dinomylostoma eastmani Hussakof 1913

G. †Mylostoma Newberry 1883

†Mylostoma eurhinus Dunkle and Bungart 1945

†Mylostoma newberryi Eastman 1907

†Mylostoma terrelli Newberry 1883

†Mylostoma variabile Newberry 1883

G. †Tafilalichthys Lehman 1956

†Tafilalichthys lavocati Lehman 1954

G. †Operchallosteus Kulczycki 1957

G. †Overtonaspis White 1961

†Overtonaspis billballi White 1961

Subor. †Pachyosteina Obruchev 1964

Invalid names: Erromenosteidae Obruchev 1964 [empty], Hussakofiidae Obruchev 1964 [empty]

G. †Parawilliamsaspis Liu 1980

Subor. †Phlyctaenina Miles 1973

Fm. †Holonematidae Obruchev 1932

G. †Belemnacanthus Eastman 1898

†Belemnacanthus giganteus Eastman 1898

G. †Deirosteus Wells 1942

†Deirosteus abbreviatus Eastman 1907

†Deirosteus angustatus Obruchev 1961

†Deirosteus omaliusii Agassiz 1844

G. †Deveonema Kulczycki 1957

†Deveonema obrucevi Kulczycki 1957

G. †Gyroplacosteus Obrutschev 1930

†Gyroplacosteus butovi Obruchev 1932

†Gyroplacosteus panderi Obruchev 1932

†Gyroplacosteus vialowi Kulczycki 1957

G. †Holonema Newberry 1890

†Holonema arcticum Mark-Kurik 1975

†Holonema farrowi Stevens 1964

†Holonema haiti Denison 1968

†Holonema harmae Mark 1953

†Holonema horrida Cope 1892

†Holonema obrutshevi Mark 1953

†Holonema ornatum Traquair 1908

†Holonema radiatum Obruchev 1932

†Holonema rugosa Claypole 1883

†Holonema westolli Miles 1971

G. †Megaloplax Obrutschev 1933

†Megaloplax marginalis Eichwald 1871

G. †Rhenonema Obruchev 1964

†Rhenonema eifeliense Kayser 1880

G. †Tiaraspis Gross 1962

†Tiaraspis subtilis Gross 1933

G. †Tropidosteus Gross 1933

†Tropidosteus curvatus Gross 1933

Fm. †Phlyctaeniidae Fowler 1947

G. †Aggeraspis Gross 1962

†Aggeraspis heintzi Gross 1933

G. †Arctaspis Heintz 1929

†Arctaspis hoegi Heintz 1929

†Arctaspis hoeli Heintz 1929

†Arctaspis holtedahli Heintz 1929

†Arctaspis kiaeri Heintz 1929

†Arctaspis maxima Heintz 1929

†Arctaspis minor Heintz 1929

G. †Arctolepis Eastman 1908

†Arctolepis brevis Heintz 1929

†Arctolepis decipiens Woodward 1891

†Arctolepis lata Heintz 1929

†Arctolepis lewini Heintz 1929

†Arctolepis longicornis Heintz 1929

†Arctolepis solnoerdali Heintz 1929

G. †Barwickosteus Young and Long 2014

†Barwickosteus antarcticus Young and Long 2014

G. †Cartieraspis Pageau 1969

†Cartieraspis nigra Pageau 1969

G. †Diadsomaspis Gross 1937

†Diadsomaspis elongata Gross 1933

†Diadsomaspis remscheidensis Gross 1937

G. †Dicksonosteus Goujet 1975

†Dicksonosteus arcticus Goujet 1975

G. †Gaspeaspis Pageau 1969

†Gaspeaspis atholi Pageau 1969

†Gaspeaspis cassivii Pageau 1969

G. †Grifftaylor Young and Long 2014

†Grifftaylor antarcticus Young and Long 2014

G. †Heterogaspis Strand 1932

†Heterogaspis acuticornis Heintz 1929

†Heterogaspis borealis Heintz 1929

†Heterogaspis gigantea Heintz 1929

†Heterogaspis hornsundi Heintz 1929

†Heterogaspis minuta Heintz 1929

G. †Huginaspis Heintz 1929

†Huginaspis broeggeri Heintz 1929

†Huginaspis vogti Heintz 1929

G. †Kolpaspis Pageau 1969

†Kolpaspis beaudryi Pageau 1969

G. †Neophlyctaenius White 1969

†Neophlyctaenius sherwoodi Denison 1950

G. †Pageauaspis Denison 1978

†Pageauaspis russelli Pageau 1969

G. †Phlyctaenius Traquair 1890

†Phlyctaenius acadicus Whiteaves 1881

†Phlyctaenius fulgens Pageau 1969

G. †Prosphymaspis Gross 1937

†Prosphymaspis constricta Gross 1933

†Prosphymaspis corneti Leriche 1948

G. †Platyaspis Koenen 1896

†Platyaspis tenuis Koenen 1895

G. †Prescottaspis

†Prescottaspis dineleyi White 1961

G. †Qataraspis

†Qataraspis deprofundis White 1969

Fm. †Rhachiosteidae Stensiö 1963

G. †Rachiosteus

†Rachiosteus pterygiatus Gross 1938

G. †Rolfosteus Dennis and Miles 1979

Fm. †Selenosteidae Dean 1901

G. †Amazichthys Jobbins et al. 2022

†Amazichthys trinajsticae Jobbins et al. 2022

G. †Braunosteus Stensiö 1959

†Braunosteus schmidti Stensiö 1959

G. †Draconichthys Rücklin 2011

†Draconichthys elegans Rücklin 2011

G. †Enseosteus Jaeckel 1919

†Enseosteus hermanni Stensiö 1959

†Enseosteus jaekeli Gross 1932

†Enseosteus marocanensis Rücklin 2011

†Enseosteus pachyostoides Stensiö 1959

G. †Gymnotrachelus Dunkle and Bongert 1939

†Gymnotrachelus hydei Dunkle and Bungart 1939

G. †Melanosteus Lelievre and Goujet 1987

†Melanosteus occitanus Lelièvre et al. 1987

G. †Microsteus Gross 1932

†Microsteus angusticeps Stensio 1963

†Microsteus dubius Gross 1932

G. †Pachyosteus Jaeckel 1903

†Pachyosteus bulla Jaekel 1903

G. †Paramylostoma

†Paramylostoma arcualis Dunkle and Bungart 1945

G. †Rhinosteus Jaeckel 1911

†Rhinosteus parvulus Gross 1932

†Rhinosteus traquairi Jaekel 1911

†Rhinosteus tuberculatus Gross 1932

G. †Selenosteus Dean 1901

†Selenosteus brevis Claypole 1869

G. †Stenosteus Dean 1901

†Stenosteus glaber Dean 1901

†Stenosteus pertenuis Branson 1911

G. †Walterosteus Stensiö 1959

†Walterosteus grossi Rücklin 2011

†Walterosteus lelievrei Rücklin 2011

†Walterosteus pachyosteides Stensiö 1959

G. †Squamatognathus Hanke et al. 1996

G. †Taemasosteus White 1952

†Taemasosteus novaustrocambricus White 1952

G. †Taunaspis Schmidt 1933

†Taunaspis eurystethes Schmidt 1933

Or. †Temnothoraci

Fm. †Chelonichthyidae

G. †Chelonichthys Agassiz 1843

G. †Ichthyosauroides Kutorga 1837

G. †Timanosteus Obrucheva 1962

†Timanosteus tchernychevi Rohon 1900

Fm. †Titanichthyidae Dean 1901

G. †Holopetalichthys Koenen 1895

G. †Titanichthys Newberry 1885

†Titanichthys agassizii Newberry 1885

†Titanichthys attenuatus Wright 1893

†Titanichthys brevis Claypole 1896

†Titanichthys clarkii Newberry 1887

†Titanichthys hussakofi Hay 1932

†Titanichthys kozlowskii Kulczycki 1957

†Titanichthys rectus Claypole 1893

†Titanichthys termieri Lehman 1954

G. †Toombalepis Young and Goujet 2003

†Toombalepis tuberculata Young and Goujet 2003

G. †Toombsosteus White 1978

G. †Torosteus Gardiner and Miles 1990

G. †Trachosteus Newberry 1890

†Trachosteus clarkii Newberry 1889

G. †Tubonasus Dennis and Miles 1979

G. †Wheathillaspis White 1961

†Wheathillaspis wickhamkingi White 1961

Subor. †Wuttagoonaspina Ritchie 1973

Fm. †Wuttagoonaspidae Ritchie 1973

G. †Wuttagoonaspis Ritchie 1973

†Wuttagoonaspis fletcheri Ritchie 1973

†Wuttagoonaspis milligani Young and Goujet 2003

G. †Yinosteus

Invalid names: Arthrodiriformes Grande and Eastman 1986 [synonym], Brachydeirina Denison 1975 [empty], Heterostiina Denison 1975 [empty], Holonematina Denison 1975 [empty], Pachyosteidae Gross 1932 [empty], Phylctaeniida [empty], Stegophthalami [empty]

G. †Asiacanthus Liu 1948

†Asiacanthus kaoi P'am 1964

†Asiacanthus multituberculatus Liu 1948

†Asiacanthus suni P'an 1964

G. †Austroptyctodus Long 1997

†Austroptyctodus gardineri Miles and Young 1977

Or. †Brindabellaspida Young 1980

G. †Brindabellaspis Young 1980

†Brindabellaspis stensioi Young 1980

G. †Campbellodus Miles and Young 1977

†Campbellodus decipiens Miles and Young 1977

G. †Changyonophyton Sze 1952

†Changyanophyton hupeiense Sze 1952

†Changyonophyton hupeiense Sze 1952

Or. †Coccostei Jaekel 1911

Invalid names: Coccostei Jaekel 1911 [empty], Heterostei Jaekel 1911 [empty], Homostei Jaekel 1911 [empty]

G. †Coelosteichthys Whitley 1940

G. †Deinodus Hussakof and Bryant 1919

†Deinodus bennetti Hussakof and Bryant 1919

G. †Hybosteus Gross 1933

†Hybosteus mirabilis Gross 1930

G. †Neopetalichthys Liu 1973

†Neopetalichthys yenmenpaensis Liu 1973

G. †Nessariostoma Broili 1933

†Nessariostoma granulosum Broili 1933

Invalid names: Nessariostoma Broili 1933 [objective synonym]

G. †Oestophorus Miller 1892

†Oestophorus lilleyi Newberry 1889

Invalid names: Sphenophorus Newberry 1889 [replaced]

Subor. †Petalichthyida Jaekel 1911

G. †Diandongpetalichthys P’an and Wang 1978

†Diandongpetalichthys liaojiaoshanensis P’an and Wang 1978

G. †Eurycaraspis Li 1991

G. †Litilpetalichthyes

Fm. †Macropetalichthyidae Eastman 1898

G. †Ellopetalichthys Orvig 1957

†Ellopetalichthys scheii Kiaer 1915

G. †Epipetalichthys Stensio 1925

†Epipetalichthys wildungensis Stensio 1925

G. †Lunaspis Broili 1929

†Lunaspis broilii Gross 1937

†Lunaspis heroldi Broili 1929

†Lunaspis pruemiensis Kayser 1880

G. †Macropetalichthys Norwood and Owen 1846

†Macropetalichthys agassizi Meyer 1846

†Macropetalichthys pelmensis Hennig 1907

†Macropetalichthys rhapheidolabis Norwood and Owen 1846

†Macropetalichthys sullivanti Newberry 1857

Invalid names: Agassichthys manni Newberry 1857 [synonym]

G. †Notopetalichthys Woodward 1941

†Notopetalichthys hillsi Woodward 1941

G. †Quasipetalichthys Liu 1973

†Quasipetalichthys haikouensis Liu 1973

G. †Wijdeaspis Obruchev 1964

†Wijdeaspis arctica Heintz 1929

Fm. †Quasipetalichthyidae Liu 1991

G. †Pauropetalichthys Pan et al. 2015

†Pauropetalichthys magnoculus Pan et al. 2015

G. †Shearsbyaspis Young 1984

G. †Xinanpetalichthys Pan and Wang 1978

Invalid names: Diandongpetalichthys P’an and Wang 1978 [valid], Eurycaraspis Li 1991 [valid], Litilpetalichthyes [valid], Macropetalichthyida [empty], Macropetalichthyida [empty], Macropetalichthyidae Eastman 1898 [valid], Petalichthyiformes [synonym], Petalichthyiformes [synonym], Quasipetalichthyidae Liu 1991 [valid], Shearsbyaspis Young 1984 [valid], Xinanpetalichthys Pan and Wang 1978 [valid]