# List of placoderm genera

This list of placoderms is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be members of the class Placodermi. This list excludes purely vernacular terms. It includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered placoderms. The modern descendants of placoderms, the bony and cartilaginous fishes, and their extinct descendants, the Acanthodii (without cartilaginous fishes), are not included here.
This list includes 334 generic names.

## Naming conventions and terminology

Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include:
* Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later assigned to the same genus, the first to be published (in chronological order) is the senior synonym, and all other instances are junior synonyms. Senior synonyms are generally used, except by special decision of the ICZN, but junior synonyms cannot be used again, even if deprecated. Junior synonymy is often subjective, unless the genera described were both based on the same type specimen.
* Nomen nudum (Latin for "naked name"): A name that has appeared in print but has not yet been formally published by the standards of the ICZN. Nomina nuda (the plural form) are invalid, and are therefore not italicized as a proper generic name would be. If the name is later formally published, that name is no longer a nomen nudum and will be italicized on this list. Often, the formally published name will differ from any nomina nuda that describe the same specimen.
* Nomen oblitum (Latin for "forgotten name"): A name that has not been used in the scientific community for more than fifty years after its original proposal.
* Preoccupied name: A name that is formally published, but which has already been used for another taxon. This second use is invalid (as are all subsequent uses) and the name must be replaced. As preoccupied names are not valid generic names, they will also go unitalicized on this list.
* Nomen dubium (Latin for "dubious name"): A name describing a fossil with no unique diagnostic features. As this can be an extremely subjective and controversial designation, this term is not used on this list.

## List of genera

| Genus | Authors | Year | Status | Notes |
| Acanthaspis | Newberry | 1875 | Valid | Preoccupied by hemiptere genus Acanthaspis Amyot & Serville, 1843, valid species synonymized with Kujdanowiaspis |
| Acantholepis | Krøyer | 1846 | Valid. | |
| Acantholepis | Newberry | 1875 | Preocc. | Preoccupied by Acantholepis Krøyer, 1846 |
| Actinolepis | Agassiz | 1845 | Valid. | |
| Aethaspis | Denison | 1958 | Valid. | |
| Africanaspis | Long Anderson Gess Hiller | 1997 | Valid. | |
| Aggeraspis | Gross | 1962 | Valid. | |
| Ailuracantha | White | 1969 | Valid. | |
| Aleosteus | Johnson Elliott Wittke | 2000 | Valid. | |
| Anarthraspis | Bryant | 1934 | Valid. | |
| Angarichthys | Obruchev | 1927 | Valid. | |
| Antarctaspis | White | 1968 | Valid. | |
| Antarctolepis | White | 1968 | Valid. | |
| Antineosteus | Lelièvre | 1984 | Valid. | |
| Arctaspis | Heintz | 1929 | Valid. | |
| Arctolepis | Eastman | 1908 | Valid. | |
| Arctonema | Orvig | 1969 | Valid. | |
| Arenipiscis | Young | 1981 | Valid. | |
| Asiacanthus | Liu | 1948 | Valid. | Placodermi incertae sedis |
| Aspidichthys | Newberry | 1873 | Valid. | Arthrodire incertae sedis |
| Asterolepis | Eichwald | 1840 | Valid. | |
| Asterosteus | Newberry | 1875 | Valid. | |
| Atlantidosteus | Lelièvre | 1984 | Valid. | |
| Austrophyllolepis | Long | 1984 | Valid. | |
| Austroptyctodus | Lelièvre | 1984 | Valid. | |
| Baringaspis | Miles | 1973 | Valid. | |
| Batteraspis | Pageau | 1969 | Valid. | |
| Belemnacanthus | Eastman | 1898 | Valid. | |
| Belgiosteus | Lehman | 1973 | Valid. | |
| Belosteus | Jaekel | 1927 | Valid. | |
| Bimbianga | Young | 2005 | Valid. | |
| Bolivosteus | Goujet Janvier Suarez-Riglos | 1985 | Valid. | |
| Bollandaspis | Schultze | 1976 | Valid. | |
| Boomeraspis | Long | 1995 | Valid. | |
| Bothriolepis | Eichwald | 1840 | Valid. | |
| Brachydeirus | Koenen | 1880 | Valid. | |
| Brachygnathus | Agassiz | 1844 | Valid. | |
| Brachygnathus | Hussakof | 1909 | Preocc. | Preoccupied by placoderm genus Brachygnathus Agassiz, 1844 |
| Brachyosteus | Jaekel | 1927 | Valid. | |
| Braunosteus | Stensiö | 1959 | Valid. | |
| Breizosteus | Goujet | 1980 | Valid. | |
| Brindabellaspis | Young | 1980 | Valid. | |
| Brontichthys | Claypole | 1894 | Invalid. | Junior synonym of Titanichthys |
| Bruntonichthys | Dennis Miles | 1980 | Valid. | |
| Bryantaspis | White Moy-Thomas | 1940 | Valid. | Replacement name for Cryptaspis Bryant, 1934 |
| Bryantolepis | Denison | 1958 | Valid. | |
| Buchanosteus | Stensiö | 1945 | Valid. | |
| Bullerichthys | Dennis Miles | 1980 | Valid. | |
| Bungartius | Dunkle | 1947 | Valid. | |
| Burrinjucosteus | | | Valid. | |
| Callognathus | Newberry | 1890 | Valid. | |
| Campbellodus | Miles Young | 1977 | Valid. | |
| Camuropiscis | Dennis Miles | 1979 | Valid. | |
| Carolowilhelmina | Mark-Kurik Carls | 2002 | Valid. | |
| Cartieraspis | Pageau | 1969 | Valid. | |
| Cathlesichthys | Young | 2004 | Valid. | |
| Ceraspis | Schultze | 1887 | Preocc. | Preoccupied by coleoptere genus Ceraspis Lepeletier & Serville, 1825 |
| Ceratolepichthys | Whitley | 1940 | Valid. | Replacement name for Ceratolepis Gross, 1933 |
| Ceratolepis | Gross | 1933 | Preocc. | Preoccupied by coleoptere genus Ceratolepis Chapuis, 1873 |
| Changyonophyton | | | Valid. | |
| Cheliophorus | | | Lapsus calami. | Misspelling of Chelyophorus |
| Chelyophorus | Agassiz | 1844 | Valid. | |
| Chuchinolepis | Chang | 1978 | Valid. | |
| Clarkeosteus | Obruchev | 1964 | Valid. | |
| Cobandrahlepis | Young | 2005 | Valid. | |
| Coccosteus | Miller | 1841 | Valid. | |
| Coelosteichthys | Whitley | 1940 | Valid. | Replacement name for Coelosteus Gross, 1930 |
| Coelosteus | Gross | 1930 | Preocc. | Preoccupied by fish genus Coelosteus Newberry, 1887 |
| Compagopiscis | Gardiner & Miles | 1994 | Valid. | |
| Companognathus | | | Valid. | |
| Cosmacanthus | Agassiz | 1845 | Valid. | |
| Cryptaspidisca | Strand | 1942 | Syn. | Replacement name for Cryptaspis Bryant, 1934 |
| Cryptaspis | Bryant | 1934 | Preocc. | Preoccupied by coleoptere genus Cryptaspis Pascoe, 1842 |
| Ctenurella | Orvig | 1960 | Valid. | |
| Cyrtosteus | Gross | 1932 | Valid. | |
| Deinodus | Hussakof Bryant | 1919 | Valid. | |
| Deirosteus | Wells | 1942 | Valid. | |
| Denisonodus | Johnson Elliott | 1996 | Valid. | |
| Desmoporella | Orvig | 1971 | Valid. | |
| Destnoporella | | | Valid. | |
| Deveonema | Kulczycki | 1957 | Valid. | |
| Dhanguura | Young | 2004 | Valid. | |
| Diandongpetalichthys | Pan Wang | 1978 | Valid. | |
| Diadsomaspis | Gross | 1937 | Valid. | |
| Dicksonosteus | Goujet | 1975 | Valid. | |
| Dinichthys | Newberry | 1873 | Originally regarded as a synonym for Dunkleosteus, now according to Carr and Hlavin 2010, it is a distinct genus. | |
| Dinomylostoma | Eastman | 1906 | Valid. | |
| Diplognathus | Newberry | 1878 | Valid. | |
| Dobrowlania | Stensiö | 1944 | Valid. | |
| Dunkleosteus | Lehman | 1956 | Valid. | |
| Eastmanosteus | Obruchev | 1964 | Valid. | |
| Eczematolepis | Miller | 1892 | Valid. | Replacement name for Acantholepis Newberry, 1875 |
| Eldenosteus | Miles | 1964 | Valid. | |
| Elegantaspis | Heintz | 1929 | Valid. | |
| Ellopetalichthys | Ørvig | 1957 | Valid. | |
| Enseosteus | Jaekel | 1919 | Valid. | |
| Entelognathus | Zhu et al | 2013 | Valid. | Placodermi incertae sedis |
| Epipetalichthys | Stensiö | 1925 | Valid. | |
| Erikaspis | Dupret Goujet Mark-Kurik | 2007 | Valid. | |
| Errolosteus | Young | 1981 | Valid. | |
| Erromenosteus | Jaekel | 1919 | Valid. | |
| Eskimaspis | Dineley Liu Yuhai | 1984 | Valid. | |
| Euleptaspis | White Moy-Thomas | 1940 | Valid. | |
| Euptychaspis | White Moy-Thomas | 1941 | Preocc. | Replacement name for Ptychaspis Bryant, 1935. Preoccupied by trilobite genus Euptychaspis Ulrich, 1931 |
| Euryaspidichthys | Whitley | 1950 | Valid. | Replacement name for Euryaspis Bryant, 1932 |
| Euraspis | Liu | 1991 | Valid. | |
| Euryaspis | Bryant | 1932 | Preocc. | Preoccupied by coleoptere genus Euryaspis Blanchard, 1851 |
| Eurycaraspis | Li | 1991 | Valid. | |
| Fallacosteus | Long | 1990 | Valid. | |
| Gaspeaspis | Pageau | 1969 | Valid. | |
| Gavinaspis | Dupret Zhu | 2008 | Valid. | |
| Gemuendenaspis | Miles | 1962 | Valid. | |
| Gemuendina | Traquair | 1903 | Valid. | |
| Glyptaspis | Newberry | 1890 | Valid. | |
| Golshanichthys | Lelièvre Janvier Goujet | 1981 | Valid. | |
| Goniosteus | Gross | 1933 | Valid. | |
| Goodradigbeeon | White | 1978 | Valid. | |
| Gorgonichthys | Claypole | 1892 | Valid. | |
| Grazosteus | Gross | 1958 | Valid. | Arthrodire incertae sedis, known only from a medial dorsal plate with a pair of prominent, posterior-pointing prongs. |
| Groenlandaspis | Heintz | 1932 | Valid. | |
| Grossaspis | White Moy-Thomas | 1940 | Valid. | Replacement name for Ceraspis Schlueter, 1887 |
| Grossilepis | Stensiö | 1949 | Valid. | |
| Grossosteus | White Moy-Thomas | 1940 | Valid. | Replacement name for Coelosteus Gross, 1930 |
| Gymnotrachelus | Dunkle Bungart | 1939 | Valid. | |
| Gyracanthus | Agassiz | 1835 | Valid. | |
| Gyroplacosteus | Obruschev | 1930 | Valid. | |
| Hadrosteus | Gross | 1932 | Valid. | |
| Harrytoombsia | Miles Dennis | 1979 | Valid. | |
| Heintzaspis | Strand | 1932 | Valid. | Replacement name for Acanthapsis Newberry, 1975 |
| Heintzichthys | Whitley | 1933 | Valid. | Replacement name for Stenognathus Newberry, 1898 |
| Heightingtonaspis | White | 1969 | Valid. | |
| Heintzosteus | Goujet | 1984 | Valid. | |
| Heterogaspis | Strand | 1932 | Valid. | |
| Heterosteus | Asmuss | 1856 | Valid. | |
| Heteroyunnanolepis | Wang | 1944 | Valid. | |
| Holdenius | Dunkle Bungart | 1942 | Valid. | |
| Hollardosteus | Lehman | 1956 | Valid. | |
| Holonema | Newberry | 1890 | Valid. | |
| Homosteus | Asmuss | 1856 | Valid. | |
| Huginaspis | Heintz | 1929 | Valid. | |
| Hussakofia | Cossmann | 1910 | Valid. | Replacement name for Brachygnathus Hussakof, 1909 |
| Hybosteus | Gross | 1933 | Valid. | Replacement name for Coelosteus Gross, 1930 |
| Incisoscutum | Dennis Miles | 1981 | Valid. | |
| Jagorina | Jaekel | 1921 | Valid. | |
| Jaekelaspis | Heintz | 1929 | Valid. | |
| Janiosteus | Ivanov | 1988 | Valid. | |
| Jerulalepis | Burrow | 1996 | Valid. | |
| Jiangxilepis | | | Valid. | |
| Jiuchengia | | | Valid. | |
| Kendrichthys | | | Valid. | |
| Kiangyousteus | | | Valid. | |
| Kiangyosteus | | | Valid. | |
| Kimaspis | Mark-Kurik | 1973 | Valid. | |
| Kimberia | Dennis-Bryan Miles | 1983 | Preocc. | Preoccupied by mollusc genus Kimberia Cotton & Woods, 1935 |
| Kimberleyichthyes | Dennis-Bryan Miles | 1983 | Valid. | Replacement name for genus Kimberia Dennis-Bryan & Miles, 1983 |
| Kolpaspis | Pageau | 1969 | Valid. | |
| Kolymaspis | Bystrow | 1956 | Valid. | |
| Kosoraspis | Gross | 1959 | Valid. | |
| Kueichowlepis | P'an Wang | 1975 | Valid. | |
| Kujdanowiaspis | Stensiö | 1942 | Valid. | |
| Kweichowlepis | | | Valid. | |
| Lataspis | Strand | 1932 | Valid. | Replacement name for Plataspis Heintz 1929 |
| Latocamurus | Long | 1988 | Valid. | |
| Lanrentaspis | Pageau | 1969 | Valid. | |
| Laurentaspis | | | Lapsus Calami. | |
| Lepadolepis | White Moy-Thomas | 1940 | Valid. | Replacement name for Ceratolepis Gross, 1933 |
| Lehmanosteus | Goujet | 1984 | Valid. | |
| Leptosteus | Jaekel | 1919 | Valid. | |
| Liognathus | Agassiz | 1846 | Valid. | |
| Liognathus | Newberry | 1873 | Preocc. | Preoccupied by fish genus Liognathus Agassiz, 1846 |
| Lispognathus | Miller | 1892 | Valid. | Replacement name for Liognathus Newberry, 1873 |
| Litilpetalichthyes | | | Valid. | |
| Liujiangolepis | Wang | 1987 | Valid. | |
| Livosteus | Obruchev | 1962 | Valid. | |
| Lophostracon | Lankester | 1884 | Valid. | |
| Luetkeichthys | Bystrow | 1957 | Valid. | |
| Lunaspis | Broili | 1929 | Valid. | |
| Lyhoalepis | Tong-Dzuy Janvier Doan-Nhat | 1994 | Valid. | |
| Machaerognathus | Hussakof Bryant | 1919 | Valid. | |
| Macropetalichthys | Norwood Owen | 1846 | Valid. | |
| Macropetalichthys | Broili | 1933 | Preocc. | Preoccupied by fish genus Macropetalichthys Norwood & Owen, 1846 |
| Maideria | Lelièvre | 1995 | Valid. | |
| Malerosteus | Kulczycki | 1957 | Valid. | |
| Materpiscis | Long Trinajstic Young Senden | 2008 | Valid. | |
| Mcnamaraspis | Long | 1995 | Valid. | |
| Mediaspis | Heintz | 1929 | Valid. | |
| Megaloplax | Obruchev | 1933 | Valid. | |
| Melanosteus | Lelièvre Goujet | 1987 | Valid. | |
| Microbrachius | Traquair | 1888 | Valid. | |
| Microsteus | Gross | 1932 | Valid. | |
| Millerosteus | Stensiö | 1959 | Valid. | |
| Mithakaspis | Young Goujet | 2003 | Valid. | |
| Mizia | Zhu | 1996 | Valid. | |
| Monaspis | Heintz | 1929 | Valid. | |
| Murmur | Whitley | 1951 | Valid. | Replacement name for Euptychaspis White & Moy-Thomas 1941 |
| Murrindalaspis | Long | 1984 | Valid. | |
| Mylostoma | Newberry | 1883 | Valid. | |
| Neopetalichthys | Liu | 1973 | Valid. | |
| Neophlyctaenius | Denison | 1950 | Valid. | |
| Nessariostoma | Broili | 1933 | Valid. | |
| Notopetalichthys | Woodward | 1941 | Valid. | |
| Oestophorus | Miller | 1892 | Valid. | Replacement name for Spenophorus Newberry, 1890 |
| Ohioaspis | Wells | 1944 | Valid. | |
| Ohiodorulites | Whitley | 1933 | Valid. | Replacement name for Acanthapsis Newberry, 1975 |
| Omalosteus | Zakharenko | 2006 | Valid. | |
| Operchaliosteus | | | Valid. | |
| Operchallosteus | Kulczycki | 1957 | Valid. | |
| Oracanthus | Agassiz | 1837 | Valid. | |
| Ottanosteus | | | Valid. | |
| Overtonaspis | White | 1961 | Valid. | |
| Oxyosteus | Jaekel | 1911 | Valid. | |
| Pachyosteus | Jaekel | 1903 | Valid. | |
| Pageauaspis | Denison | 1978 | Valid. | Replacement name for Quebecaspis Pageau, 1969 |
| Palaeacanthaspis | Brotzen | 1934 | Valid. | |
| Palaeomylus | Woodward | 1891 | Valid. | |
| Panxiosteus | Wang | 1979 | Valid. | |
| Parabelosteus | | | Valid. | |
| Parabuchanosteus | White Toombs | 1972 | Valid. | |
| Paramylostoma | Dunkle Bungart | 1945 | Valid. | |
| Parapetalichthys | Kuhn | 1949 | Valid. | Replacement name for Macropetalichthys Broili, 1933 |
| Paraplesiobatis | Broili | 1933 | Valid. | |
| Paraptyctodus | | | Valid. | |
| Parawalterosteus | Stensiö | 1963 | Valid. | |
| Pelycophorus | | | Valid. | |
| Phlyctaenacanthus | Eastman | 1898 | Valid. | |
| Phlyctaenaspis | Traquair | 1890 | Valid. | Replacement name for Phlyctaenius Traquair, 1890 |
| Phlyctaenius | Traquair | 1890 | Preocc. | nec Phlyctaenium Zittel 1879 |
| Pholidosteus | Jaekel | 1907 | Valid. | |
| Phyllolepis | Agassiz | 1844 | Valid. | |
| Phymolepis | Chang | 1978 | Valid. | |
| Phymosteus | Wang Zhu | 2004 | Valid. | |
| Pinguosteus | Long | 1990 | Valid. | |
| Placolepis | Ritchie | 1984 | Valid. | |
| Plataspis | Heintz | 1929 | Preocc. | Preoccupied by hemiptere genus Plataspis Hope, 1837 |
| Platyaspis | Koenen | 1896 | Valid. | |
| Plourdosteus | Ørvig | 1951 | Valid. | |
| Ponerichthys | Miller | 1892 | Invalid, declared a junior synonym of Dunkleosteus. | |
| Prescottaspis | | | Valid. | |
| Proaethaspis | Denison | 1978 | Valid. | |
| Procondylolepis | Zhang | 1984 | Valid. | |
| Prosphymaspis | Gross | 1937 | Valid. | |
| Protitanichthys | | | Valid. | |
| Pseudopetalichthys | Moy-Thomas | 1939 | Valid. | |
| Pterichthyodes | Bleeker | 1859 | Valid. | |
| Ptychaspis | Bryant | 1935 | Preocc. | Preoccupied by trilobite genus Ptychaspis Hall, 1863 |
| Ptyctodopsis | Denison | 1985 | Valid. | |
| Ptyctodus | Pander | 1858 | Valid. | |
| Qataraspis | White | 1969 | Valid. | |
| Quasipetalichthys | Liu | 1973 | Valid. | |
| Quebecaspis | Pageau | 1969 | Preocc. | Preoccupied by trilobite genus Quebecaspis Rasetti, 1944 |
| Qujinolepis | Zhang | 1978 | Valid. | |
| Rachiosteus | Gross | 1938 | Valid. | |
| Radotina | Gross | 1950 | Valid. | |
| Ramphodus | Davis | 1883 | Valid. | |
| Remigolepis | Stensiö | 1931 | Valid. | |
| Rhachiosteus | Gross | 1938 | Valid. | |
| Rhamphodontus | | | Valid. | |
| Rhamphodopsis | Watson | 1934 | Valid. | |
| Rhampodus | | | Valid. | |
| Rhenonema | Obruchev | 1964 | Valid. | |
| Rhinosteus | Jaekel | 1911 | Valid. | |
| Rhynchodontus | Jaekel | 1919 | Valid. | |
| Rhynchodus | Newberry | 1873 | Valid. | |
| Rhynchognathus | Jaekel | 1929 | Valid. | |
| Rhynchosteus | Jaekel | 1925 | Valid. | |
| Ringinia | Whitley | 1950 | Valid. | |
| Rinodus | Newberry Worthen | 1866 | Valid. | |
| Rolfosteus | Dennis Miles | 1979 | Valid. | |
| Romundina | Orvig | 1975 | Valid. | |
| Sedowichthys | Bystrow | 1957 | Valid. | |
| Selenosteus | Dean | 1901 | Valid. | |
| Shearsbyaspis | Young | 1984 | Valid. | |
| Sigaspis | Goujet | 1973 | Valid. | |
| Simblaspis | Denison | 1958 | Valid. | |
| Simosteus | Dennis Miles | 1982 | Valid. | |
| Sinolepis | Liu Pan | 1958 | Valid. | |
| Squamatognathus | Hanke Stewart Lammers | 1996 | Valid. | |
| Stenognathus | Newberry | 1898 | Preocc. | Preoccupied by coleoptere genus Stenognathus Chaudoir, 1843 |
| Stenosteus | Dean | 1901 | Valid. | |
| Stensioella | Broili | 1933 | Valid. | |
| Steurtzaspis | | | Valid. | |
| Stuertzaspis | Westoll Miles | 1963 | Valid. | |
| Svalbardaspis | Heintz | 1929 | Valid. | |
| Synauchenia | Jaekel | 1919 | Valid. | |
| Szelepis | Liu | 1981 | Valid | Originally named Szeaspis Liu (1979), but this name turned out to be preoccupied by the trilobite genus Szeaspis Chang, 1969 |
| Taemasosteus | White | 1978 | Valid. | |
| Taeniolepis | Gross | 1932 | Valid. | |
| Tafilalichthys | Lehman | 1956 | Valid. | |
| Tapinosteus | Stensiö | 1963 | Valid. | |
| Taunaspis | Schmidt | 1933 | Valid. | |
| Tiaraspis | Gross | 1962 | Valid. | |
| Timanosteus | Obruchev | 1962 | Valid. | |
| Titanichthys | Newberry | 1885 | Valid. | |
| Tityosteus | Gross | 1960 | Valid. | |
| Tollichthys | Bystrow | 1957 | Valid. | |
| Tollodus | Mark-Kurik | 1977 | Valid. | |
| Tomaiosteus | Kulczycki | 1957 | Valid. | |
| Tongdzuylepis | Janvier Phuong | 1999 | Valid. | |
| Toombsosteus | White | 1978 | Valid. | |
| Torosteus | Gardiner Miles | 1990 | Valid. | |
| Trachosteus | Newberry | 1890 | Valid. | |
| Trematosteus | Jaekel | 1927 | Valid. | |
| Tropidosteus | Gross | 1933 | Valid. | |
| Tubalepis | Panteleyev | 2003 | Valid. | |
| Tubonasus | Dennis Miles | 1979 | Valid. | |
| Uralosteus | Mark-Kurik Young | 2003 | Valid. | |
| Vukhuclepis | Janvier Thanh Phuong Truong | 1997 | Valid. | |
| Walterosteus | Stensiö | 1959 | Valid. | |
| Watsonosteus | Miles Westoll | 1963 | Valid. | |
| Weejasperaspis | White | 1978 | Valid. | |
| Westralichthys | Long | 1987 | Valid. | |
| Wheathillaspis | White | 1961 | Valid. | |
| Wijdeaspis | Obruchev | 1964 | Valid. | |
| Wijeaspis | | | Valid. | |
| Williamsaspis | White | 1952 | Valid. | |
| Woodwardosteus | White Moy-Thomas | 1940 | Valid. | |
| Wufengshania | Pan | 2018 | Valid | |
| Wuttagoonaspis | Ritchie | 1973 | Valid. | |
| Xichonolepis | Pan Wang | 1978 | Valid. | |
| Xinanpetalichthyes | | | Valid. | |
| Yiminaspis | Dupret | 2008 | Valid. | |
| Yinosteus | | | Valid. | |
| Yunnanocanthus | | | Valid. | |
| Yunnanolepis | Liu | 1963 | Valid. | |
| Yurammia | Young | 2005 | Valid. | |
| Zhanjilepis | Zhang | 1978 | Valid. | |
* Austrophyllolepis
* Brindabellaspis stensioi
* Bothriolepis
* Coccosteus
* Dunkleosteus
* Dunkleosteus
* Dunkleosteus
* Gemuendina
* Gemuendina
* Groenlandaspis
* Homosteus
* Jagorina
* Lunaspis
* Lunaspis
* Materpiscis
* Materpiscis
* Murrindalaspis
* Phyllolepis
* Pseudopetalichthys
* Quasipetalichthys
* Rhamphodopsis
* Rolfosteus
* Stensioella
* Titanichthys termieri
* Yunnanolepis