Perleidiformes Explained

Perleidiformes are an extinct order of prehistoric ray-finned fish from the Triassic period^[1] 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.^{[2] [3] [4]}

Classification

• • Family †Cleithrolepididae Wade 1935 corrig. [Cleithrolepidae <small>Wade 1935</small>; Hydropessidae <small>Hutchinson 1973</small>]
    • 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 <small>Jordan 1923</small>]
      • Genus †Albertonia Gardiner 1966
      • Genus †Boreichthys Selezneva 1982
      • Genus †Cenchrodus von Meyer 1847
      • Genus †Chrotichthys Wade 1940
      • Genus †Crenilepis Dames 1888 [''[[Crenolepis|Crenilepoides]] Strand 1929]
      • Genus †Dollopterus Abel 1906 [''Dolichopterus'' <small>Compter 1891 non Hall 1859 non Murray 1870</small>]
      • 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 (fish)|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 <small>Sun et al. 2012</small>]
      • 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

Timeline of genera

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Period = from:-251 till:-190TimeAxis = orientation:horizontalScaleMajor = unit:year increment:5 start:-251ScaleMinor = unit:year increment:1 start:-251TimeAxis = orientation:horAlignBars = justify

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bar:eratop from: -251 till: -245 color:earlytriassic text:Early Triassic from: -245 till: -228 color:middletriassic text:Middle Triassic from: -228 till: -199.6 color:latetriassic text:Late Triassic

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color:earlytriassic bar:NAM1 from: -251 till: -249.7 text: Chrotichthys color:earlytriassic bar:NAM2 from: -251 till: -245 text: Zeuchthiscus color:earlytriassic bar:NAM3 from: -251 till: -245 text: Tripelta color:earlytriassic bar:NAM4 from: -251 till: -245 text: Plesioperleidus color:earlytriassic bar:NAM5 from: -251 till: -245 text: Meidiichthys color:earlytriassic bar:NAM6 from: -251 till: -245 text: Hydropessum color:earlytriassic bar:NAM7 from: -251 till: -245 text: Helmolepis color:earlytriassic bar:NAM8 from: -251 till: -245 text: Boreichthys color:earlytriassic bar:NAM9 from: -250.13 till: -239.67 text: Saurichthyes color:earlytriassic bar:NAM10 from: -249.7 till: -216.5 text: Perleidus color:earlytriassic bar:NAM11 from: -249.7 till: -216.5 text: Dipteronotus color:earlytriassic bar:NAM12 from: -249.7 till: -203.6 text: Thoracopterus color:earlytriassic bar:NAM13 from: -249.7 till: -199.6 text: Colobodus color:middletriassic bar:NAM14 from: -245 till: -237 text: Dollopterus color:middletriassic bar:NAM15 from: -245 till: -237 text: Crenolepis color:middletriassic bar:NAM16 from: -245 till: -237 text: Cleithrolepis color:middletriassic bar:NAM17 from: -245 till: -234 text: Meridensia color:middletriassic bar:NAM18 from: -245 till: -228 text: Procheirichthys color:middletriassic bar:NAM19 from: -237 till: -234 text: Peltoperleidus color:middletriassic bar:NAM20 from: -237 till: -234 text: Luganoia color:middletriassic bar:NAM21 from: -237 till: -234 text: Ctenognathichthys color:middletriassic bar:NAM22 from: -237 till: -234 text: Besania color:middletriassic bar:NAM23 from: -237 till: -234 text: Aetheodontus color:middletriassic bar:NAM24 from: -237 till: -228 text: Manlietta color:middletriassic bar:NAM25 from: -228.7 till: -216.5 text: Gigantopterus color:latetriassic bar:NAM26 from: -212.2 till: -207.9 text: Gabanellia

PlotData= align:center textcolor:black fontsize:M mark:(line,black) width:25

bar:period from: -251 till: -249.7 color:earlytriassic text:Ind. from: -249.7 till: -245 color:earlytriassic text:Olenekian from: -245 till: -237 color:middletriassic text:Anisian from: -237 till: -228 color:middletriassic text:Ladinian from: -228 till: -216.5 color:latetriassic text:Carnian from: -216.5 till: -203.6 color:latetriassic text:Norian from: -203.6 till: -199.6 color:latetriassic text:Rhaetian

bar:era from: -251 till: -245 color:earlytriassic text:Early Triassic from: -245 till: -228 color:middletriassic text:Middle Triassic from: -228 till: -199.6 color:latetriassic text:Late Triassic

External links

Web site: Perleidiformes. Fossilworks. 17 December 2021.

Notes and References

1. Sepkoski . Jack . A compendium of fossil marine animal genera . Bulletins of American Paleontology . 363 . 1–560 . 2002 . 2011-05-17 .
2. Xu, G.-H. . amp . 2020 . Feroxichthys yunnanensis gen. et sp. nov. (Colobodontidae, Neopterygii), a large durophagous predator from the Middle Triassic (Anisian) Luoping Biota, eastern Yunnan, China . PeerJ . 8 . e10229 . 10.7717/peerj.10229. 33150093 . 7583626 . free.
3. Wen . W. . Hu . S. X. . Zhang . Q. Y. . Benton . M. J. . Kriwet . J. . Chen . Z. Q. . Zhou . C. Y. . Xie . T. . Huang . J. Y. . A new species of Platysiagum from the Luoping Biota (Anisian, Middle Triassic, Yunnan, South China) reveals the relationship between Platysiagidae and Neopterygii . Geological Magazine . 2019 . 156 . 4 . 669–682 . 10.1017/S0016756818000079. 2019GeoM..156..669W . 1983/67be3458-c375-4742-b7b0-22e52c7b5040 . 134097409 . free .
4. Sun . Z. . Tintori . A. . Lombardo . C. . Jiang . D. . Hao . W. . Sun . Y. . Wu . F. . Rusconi . M. . A new species of the genus Colobodus Agassiz, 1844 (Osteichthyes, Actinopterygii) from the Pelsonian (Anisian, Middle Triassic) of Guizhou, South China . Rivista Italiana di Paleontologia e Stratigrafia . 2008 . 114 . 3 . 363–376.