# Perleidiformes

Perleidiformes are an extinct order of prehistoric ray-finned fish from the Triassic period Although numerous Triassic taxa have been referred to Perleidiformes, which ones should be included for it to form a monophyletic group is a matter of ongoing scientific debate.

## Classification

* Genus † Saurichthyes
** Family †Cleithrolepididae Wade 1935 corrig. [Cleithrolepidae Wade 1935; Hydropessidae Hutchinson 1973]
*** Genus †Hydropessum Broom 1909
*** Genus †Cleithrolepidina Berg 1955
*** Genus †Cleithrolepis Egerton 1864
*** Genus †Dipteronotus Egerton 1864
** Suborder †Cephaloxenoidei Lehman 1966
*** Family †Cephaloxenidae Brough 1939
**** Genus †Cephaloxenus Brough 1939
** Suborder †Perleidoidei
*** Family †Platysiagidae Brough 1939 sensu Neuman & Mutter 2005
**** Genus †Caelatichthys Lombardo 2002
**** Genus †Helmolepis Stensiö 1932
**** Genus †Platysiagum Egerton 1872
*** Family †Polzbergiidae Griffin 1977
**** Genus †Luopingichthys Sun et al. 2009
**** Genus †Serrolepis Quenstedt 1852 ex Dames 1888
**** Genus †Ctenognathichthys Burgin 1992
**** Genus †Stoppania Lombardo, Rusconi & Tintori 2008
**** Genus †Polzbergia Griffith 1977
**** Genus †Felberia Lombardo & Tintori 2004
*** Family †Gabanellidae Tintori & Lombardo 1996
**** Genus †Gabanellia Tintori & Lombardo 1996
*** Family †Aetheodontidae Brough 1939
**** Genus †Aetheodontus Brough 1939
*** Family †Colobodontidae Andersson 1916 [Asterodontidae Jordan 1923]
**** Genus †Albertonia Gardiner 1966
**** Genus †Boreichthys Selezneva 1982
**** Genus †Cenchrodus von Meyer 1847
**** Genus †Chrotichthys Wade 1940
**** Genus †Crenilepis Dames 1888 [Crenilepoides Strand 1929]
**** Genus †Dollopterus Abel 1906 [Dolichopterus Compter 1891 non Hall 1859 non Murray 1870]
**** Genus †Engycolobodus Oertle 1927
**** Genus †Hemilopas von Meyer 1847
**** Genus †Manlietta Wade 1935
**** Genus †Meidiichthys Borough 1931
**** Genus †Meridensia Stensiö 1916
**** Genus †Nephrotus Meyer 1849 [Omphalodus Meyer 1847; Eupleurodus Gürich, 1884]
**** Genus †Pristisomus Woodward 1890
**** Genus †Procheirichthys Wade 1935
**** Genus †Zeuchthiscus Wade 1940
**** Genus †Colobodus Agassiz 1844 [Asterodon Münster, 1841]
*** Family †Pseudobeaconiidae López-Arbarello & Zavattieri 2008
**** Genus †Caminchaia Rusconi 1946a
**** Genus †Echentaia Rusconi 1946
**** Genus †Pasambaya Rusconi 1946a
**** Genus †Anatoia Rusconi 1946a
**** Genus †Pseudobeaconia Bordas 1944
*** Family †Perleididae Brough 1931 [Fuyuanperleididae Sun et al. 2012]
**** Genus †Altisolepis Mutter & Herzog 2004
**** Genus †Alvinia Sytchevskaya 1999 non Monterosato 1884
**** Genus †Chaohuperleidus Sun et al., 2013
**** Genus †Daninia Lombardo 2001
**** Genus †Diandongperleidus Geng et al. 2012
**** Genus †Endennia Lombardo & Brambillasca 2005
**** Genus †Fuyuanperleidus Geng et al. 2012
**** Genus †Luopingperleidus Geng et al. 2012
**** Genus †Megaperleidus Sytchevskaya 1999
**** Genus †Mendocinichthys Whitley 1953 [Mendocinia Bordas 1944 non Jensen-Haarup 1920]
**** Genus †Paraperleidus Zhao & Liu 2007
**** Genus †Peltoperleidus Bürgin et al. 1991
**** Genus †Plesioperleidus Su & Li 1983 sensu Tong et al. 2006 [Zhangina Liu 2002]
**** Genus †Perleidus De Alessandri 1910 sensu Lombardo et al. 2011