Saurichthyiformes

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Saurichthyiformes
Temporal range: Changhsingian-Aalenian
File:Saurichthys model.jpg
Life restoration of Saurichthys
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: †Saurichthyiformes
Aldinger, 1937
Families
File:Saurichthys (Mensch & Natur-Museum, München).jpg
The Triassic †Saurichthys was a highly specialized predator
File:Saurichthys paucitrichus.jpg
Costasaurichthys paucitrichus fossil
File:Saurichthys curionii.jpg
Saurichthys curionii fossil
File:Saurorhynchus brevirostris with a fish.jpg
Fossil of the Jurassic saurichthyid †Saurorhynchus brevirostris
File:Saurichthyids.jpg
Morphological comparison of †Saurichthyidae with extant needlefish and flying fish. A. †Sinosaurichthys longipectoralis; B. †Sinosaurichthys longimedialis; C. †Sinosaurichthys minuta; D. †Saurichthys dawaziensis from Middle Triassic of Dawazi Section, Luoping, Yunnan, China (based on Wu et al. 2009). E. Atlantic needlefish Strongylura marina (Family Belonidae). F. Bluntnose flyingfish Prognichthys gibbifrons (Family Exocoetidae). E and F redrawn from images at http://www.fishbase.org/images/species that were originally from Cervigón et al. (1992).

Saurichthyiformes is an extinct order of ray-finned fish which existed in Asia, Africa, Australia, Europe and North America, during the late Permian to early Middle Jurassic.[1][2][3][4] Saurichthyiiformes comprise two families, Saurichthyidae and Yelangichthyidae. Yelangichthyidae is monotypic, containing only the genus Yelangichthys. The gar or needlefish-like Saurichthyidae is primarily known from the genus Saurichthys. Additionally, the subgenera Saurorhynchus Costasaurichthys, Eosaurichthys, Lepidosaurichthys, and Sinosaurichthys are frequently used to group species, and are sometimes considered separate genera. Species are known from both marine end freshwater deposits. They had their highest diversity during the Early and Middle Triassic.[5] Their phylogenetic position is uncertain, while they have often been considered members of Chondrostei, and thus related to living sturgeons and paddlefish, phylogenetic analysis of well-preserved remains has considered this relationship equivocal. They may actually belong to the stem-group of Actinopterygii, and thus not closely related to any living group of ray-finned fish.[6]

Systematics

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  • Order †Saurichthyiformes Aldinger, 1937 [Saurichthyida Berg, 1937][7][8][9]
    • Family †Saurichthyidae Owen 1860 [Saurichthyoidei Bleeker 1859; Belonorhynchidae Woodward 1888; Saurorhynchidae Jordan, 1905]
      • Genus †Saurichthys Agassiz, 1834 [Belonorhynchus Bronn 1858; Brevisaurichthys Beltan 1972; Giffonus Costa 1862; Gymnosaurichthys Berg 1940; Ichthyorhynchus Bellotti 1857; Stylorhynchus Martin 1873, non Lesson 1847, non Stein 1848; Systolichthys Beltan 1972]
        • †Saurichthys apicalis Agassiz 1834 (type species)
        • †Saurichthys breviabdominalis Maxwell et al. 2015[10]
        • †Saurichthys curionii (Bellotti 1857)
        • †Saurichthys daubreei Firtion 1934
        • †Saurichthys dawaziensis Wu et al. 2009
        • †Saurichthys dianneae Maxwell et al. 2016
        • †Saurichthys dongusensis Minich 1992
        • †Saurichthys eximius Minikh 1982
        • †Saurichthys gigas (Woodward 1890), non von Quenstedt 1858
        • †Saurichthys gracilis (Woodward 1890)
        • †Saurichthys grignae Tintori 2013
        • †Saurichthys gypsophilus Reis 1892
        • †Saurichthys hamiltoni Stensiö 1925
        • †Saurichthys hoffmanni Werneburg et al. 2014
        • †Saurichthys huanshenensis Chou & Liu 1957
        • †Saurichthys irregularis Oertle 1928
        • †Saurichthys latifrons Eck 1865
        • †Saurichthys lepidosteoides Frech 1903
        • †Saurichthys macrocephalus (Deecke 1889)
        • †Saurichthys majiashanensis Tintori et al. 2014
        • †Saurichthys minimahleri Werneburg et al. 2014
        • †Saurichthys nepalensis Beltan & Janvier 1978
        • †Saurichthys obrutchevi Minich 1981
        • †Saurichthys orientalis Sytchevskaya 1999
        • †Saurichthys parvidens Wade 1935
        • †Saurichthys piveteaui Beltan 1968
        • †Saurichthys proximus Minich 1981
        • †Saurichthys rieppeli Maxwell et al. 2015[10]
        • †Saurichthys sceltrichensis Renesto et al. 2021[11]
        • †Saurichthys seefeldensis Kner 1867
        • †Saurichthys spinosa Wu et al. 2018[12]
        • †Saurichthys stensioi Lehman 1952
        • †Saurichthys sui Fang & Wu 2022[13]
        • †Saurichthys tenuirostris Münster 1839[14]
        • †Saurichthys tertius Minich 1982
        • †Saurichthys ultimus Minikh 1992
        • †Saurichthys vjuschkovi Minikh 1983
        • †Saurichthys yangjuanensis Wu et al. 2015
        • †Saurichthys yunnanensis Zhang, Zhou, Lu & Bai 2010
      • Subgenus †Costasaurichthys Tintori, 2013[15]
        • †Saurichthys (Costasaurichthys) costasquamosus Rieppel 1985 (type species)
        • †Saurichthys (Costasaurichthys) paucitrichus Rieppel 1992
      • Subgenus †Eosaurichthys Liu & Wei, 1988
        • †Saurichthys (Eosaurichthys) chaoi (Liu and Wei 1988) (type species)
        • †Saurichthys (Eosaurichthys) madagascariensis Piveteau 1945[16]
      • Subgenus †Lepidosaurichthys Tintori, 2013[15]
        • †Saurichthys (Lepidosaurichthys) dayi (Raymond 1925) (type species)
        • †Saurichthys (Lepidosaurichthys) elongatus Stensiö 1925
        • †Saurichthys (Lepidosaurichthys) ornatus Stensiö 1925
        • †Saurichthys (Lepidosaurichthys) toxolepis Mutter et al. 2008
        • †Saurichthys (Lepidosaurichthys) wimani (Woodward 1912)[17]
      • Subgenus †Sinosaurichthys Wu et al., 2010[1]
        • †Saurichthys (Sinosaurichthys) longipectoralis Wu et al. 2009 (type species)
        • †Saurichthys (Sinosaurichthys) longimedialis Wu et al. 2009
        • †Saurichthys (Sinosaurichthys) minuta Wu et al. 2009
      • Genus †Saurorhynchus Reis, 1892 [Acidorhynchus Stensiö, 1925][18]
        • †Saurichthys (Saurorhynchus) calcaratus Griffith 1977[19]
        • †Saurichthys (Saurorhynchus) deperditus (Costa 1862)
        • †Saurichthys (Saurorhynchus) striolatus Bronn 1858[19]
        • †Saurorhynchus acutus (Agassiz 1844) (type species)
        • †Saurorhynchus anningae Maxwell & Stumpf 2017
        • †Saurorhynchus brevirostris (Woodward 1895)
        • †Saurorhynchus hauffi Maxwell & Stumpf 2017
    • Family †Yelangichthyidae Wu et al., 2013

Phylogeny

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Modified from Maxwell et al.[20] (also see Renesto et al.,[21] Argyriou et al.[6] and Gardiner et al.[22])

Actinopteri

NeopterygiiFile:Common carp (white background).jpg

Chondrostei

Acipenseriformes?File:Atlantic sturgeon flipped.jpg

†BirgeriaFile:BirgeriaDB15.jpg

†Saurichthyiformes

†Yelangichthyidae

†Saurichthyiidae

†Eosaurichthys

†Lepidosaurichthys

†Saurichthys rieppeli

†Saurichthys dawaziensis

†Saurichthys grignae

†Sinosaurichthys

†S. minuta

†S. longimedialis

†S. longipectoralis

†Costasaurichthys

†C. costasquamosus

†C. paucitrichius

†Saurichthys macrocephalus

†Saurichthys curionii

†Saurorhynchus

†S. brevirostris

†S. calcaratus

†S. deperditus

†S. striolatus

Timeline of genera

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References

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  4. ^ Maxwell, E.E. (2016): First Middle Jurassic record of Saurichthyidae (Actinopterygii). Paläontologische Zeitschrift 90:287-291 https://doi.org/10.1007/s12542-015-0281-5
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  10. ^ a b Discovery of two new species of primitive fishes
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  14. ^ Fossilworks: Saurichthys Agassiz 1843
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  18. ^ Kogan, I. (2016): Acidorhynchus Stensiö, 1925 or Saurorhynchus Reis, 1892: how to call the Jurassic saurichthyid? Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 279:123-126 https://doi.org/10.1127/njgpa/2016/0545
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Additional references

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