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{{Short description|Subclass of fishes}}
Funky schit, man.
{{automatic taxobox
| name = Neopterygii
| fossil_range = {{fossilrange|Early Triassic|Present}}
| image = Siganus corallinus Brest.jpg
| image_caption = '']'' (a ])
| image2 = Lepisosteus oculatus Knochenhecht.JPG
| image2_caption = '']'' (a ])
| taxon = Neopterygii
| authority = ], 1923<ref name=Regan1923>{{cite journal |last=Regan |first=C. Tate |year=1923 |title=The Skeleton of ''Lepidosteus'', with remarks on the origin and evolution of the lower Neopterygian Fishes |journal=Journal of Zoology |volume=93 |issue=2 |pages=445–461 |doi=10.1111/j.1096-3642.1923.tb02191.x |url=https://www.biodiversitylibrary.org/part/72001 }}</ref>
| subdivision_ranks = Infraclasses
| subdivision = *]
*]
*{{extinct}}]
For others, see text
}}

'''Neopterygii''' (from Greek νέος ''neos'' 'new' and πτέρυξ ''pteryx'' 'fin') is a ] of ] (Actinopterygii). Neopterygii includes the ] and the ], of which the latter comprise the vast majority of extant ], and over half of all living ] ].<ref name="Nelson 2016">{{cite book| last = Nelson| first = Joseph, S.| title = Fishes of the World| year = 2016| publisher = John Wiley & Sons, Inc| isbn = 978-1-118-34233-6 }}</ref> While living holosteans include only freshwater ], teleosts are diverse in both ] and ] environments. Many new species of teleosts are ] each year.<ref name="Nelson 2016"/>

The potentially oldest known neopterygian is the putative "]" '']'' from the ] of Russia;<ref name="Broughton2013">{{Cite journal |last1=Broughton |first1=Richard E. |last2=Betancur-R. |first2=Ricardo |last3=Li |first3=Chenhong |last4=Arratia |first4=Gloria |last5=Ortí |first5=Guillermo |date=2013-04-16 |title=Multi-locus phylogenetic analysis reveals the pattern and tempo of bony fish evolution |journal=PLOS Currents |volume=5 |pages=ecurrents.tol.2ca8041495ffafd0c92756e75247483e |doi=10.1371/currents.tol.2ca8041495ffafd0c92756e75247483e |doi-broken-date=1 November 2024 |doi-access=free |issn=2157-3999 |pmc=3682800 |pmid=23788273}}</ref><ref name="PBDB">{{Cite web |title=PBDB |url=https://paleobiodb.org/classic/basicTaxonInfo?taxon_no=99748 |access-date=2024-02-26 |website=paleobiodb.org}}</ref> however, one study incorporating ] data from ] and molecular data from ] and ] ], places this ] date at least 284&nbsp;mya (million years ago), during the ] stage of the Early ].<ref name="date">{{cite journal| last1=Hurley |first1=Imogen A. |last2=Mueller |first2=Rachael Lockridge |last3=Dunn |first3=Katherine A. |date=21 November 2006 |doi=10.1098/rspb.2006.3749 |title=A new time-scale for ray-finned fish evolution |volume=274 |issue=1609 |journal=Proceedings of the Royal Society B|pages=489–498 |pmid=17476768 |pmc=1766393 }}</ref> Another study suggests an even earlier split (360&nbsp;] ago, near the ]-] boundary).<ref name="PNAS2">{{cite journal |author=Thomas J. Near |display-authors=etal |date=2012 |title=Resolution of ray-finned fish phylogeny and timing of diversification |journal=PNAS |volume=109 |issue=34 |pages=13698–13703 |bibcode=2012PNAS..10913698N |doi=10.1073/pnas.1206625109 |pmc=3427055 |pmid=22869754 |doi-access=free}}</ref>

{{clade| style=font-size:100%;line-height:100%;
| label1=]
|1={{clade
|1=] ] (118 living species: ], ])
|label2=]
|2={{clade
|1=] <span style="{{MirrorH}}">]</span> (>1,100 living species: ], ], ])
|label2= ]
|2={{clade
| 1={{clade
|label1=]
|1={{clade
|1=] ] (2 living species: ])
|label2=]
|2={{clade
|1=] <span style="{{MirrorH}}">]</span> (6 living species: ])
|2=] ] (>30,000 living species: ], ], ], ])
}}
}}
|label2=]
|2={{clade
|1=] ] (14 living species: ], ])
|label2=]
|2={{clade
|1=] ] (27 living species: ], ])
|2='''Neopterygii''' ] '''(>32,000 living species)'''
}} }} }} }} }} }} }}

== Evolution and diversity ==
{{Further|Evolution of fish|Diversity of fish}}
Living neopterygians are subdivided into two main groups (]es): ] and ].<ref>{{cite journal | last1 = López-Arbarello | first1 = A | year = 2012 | title = Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii) | journal = PLOS ONE | volume = 7 | issue = 7| page = e39370 | doi = 10.1371/journal.pone.0039370 | pmid = 22808031 | pmc = 3394768 | bibcode = 2012PLoSO...739370L | doi-access = free }}</ref> Holosteans comprise two ], the ] and the ].<ref>{{cite web | author = Betancur-R | title = Phylogenetic Classification of Bony Fishes Version 4 | url = https://sites.google.com/site/guilleorti/classification-v-4 |date=2016}}</ref><ref name="Nelson 2016"/><ref>{{ITIS |id=161061 |taxon=Actinopterygii |access-date=3 April 2006}}</ref><ref>{{cite web | editor = R. Froese and D. Pauly| title = FishBase | url = http://www.fishbase.org |date=February 2006}}</ref> All of these groups have a long and extensive ].<ref name="Friedman & Sallan 2012">{{cite journal |last1=Friedman |first1=Matt |last2=Sallan |first2=Lauren Cole |title=Five hundred million years of extinczion and recovery: A Phanerozoic survey of large-scale diversity patterns in fishes |journal=Palaeontology |date=June 2012 |volume=55 |issue=4 |pages=707–742 |doi=10.1111/j.1475-4983.2012.01165.x|bibcode=2012Palgy..55..707F |s2cid=59423401 |doi-access=free }}</ref> The ] between the different groups of Neopterygii is summarized in the ] below (] time for each ] in ] are based on<ref name=PNAS>{{cite journal |title=Resolution of ray-finned fish phylogeny and timing of diversification |author=Thomas J. Near |journal=PNAS |doi=10.1073/pnas.1206625109 |date=2012 |volume=109 |issue=34 |pages=13698–13703|display-authors=etal |pmid=22869754 |pmc=3427055|bibcode=2012PNAS..10913698N |doi-access=free }}</ref>).

{{clade
| label1='''Neopterygii''' 360 ]
| 1={{clade
|label1=] 275 ]
|1={{clade
|1=] ] (7 living ]: ]s and ]s)
|2=] ] (2 living species: ] and ])
}}
|label2=310 ]
|2=] ] (>32,000 living species)
}} }}

Neopterygians are a very speciose group. They make up over 50% of the total ] ] today, and their diversity grew since the ] ].<ref name="Friedman & Sallan 2012"/><ref name="Romano et al 2016">{{cite journal |last1=Romano |first1=Carlo |last2=Koot |first2=Martha B. |last3=Kogan |first3=Ilja |last4=Brayard |first4=Arnaud |last5=Minikh |first5=Alla V. |last6=Brinkmann |first6=Winand |last7=Bucher |first7=Hugo |last8=Kriwet |first8=Jürgen |title=Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution |journal=Biological Reviews |date=February 2016 |volume=91 |issue=1 |pages=106–147 |doi=10.1111/brv.12161 |pmid=25431138 |s2cid=5332637 |url=https://hal.science/hal-01253154 }}</ref> However, the diversity of the various groups of neopterygians (or of ] in general) is unevenly distributed, with teleosts making up the vast majority (96%) of living species.<ref name="Nelson 2016"/>
] ] '']'' is an early neopterygian.]]

Early in their ], neopterygians were a very successful group of fish, because they could move more rapidly than their ancestors. Their scales and skeletons began to lighten during their evolution, and their jaws became more powerful and efficient.<ref name="Nelson 2016"/> While ] and the ] are present in all other extant groups of fish (except for ]), neopterygians have lost this sense, even if it has later re-evolved within ] and ]es, which possess ] teleost ampullae.<ref></ref>

Only a few changes occurred during the evolution of neopterygians from the earlier ]. However, a very important step in the evolution of neopterygians is the acquisition of a better control of the movements of both ] and ]s, resulting in an improvement in their swimming capabilities. They additionally acquired several modifications in the ], which allowed the evolution of different ] mechanisms and consequently the colonization of new ecological ]s. All of these characters represented major improvements, resulting in Neopterygii becoming the dominant group of fishes (and, thus, ] of ] in general) today.<ref name="Friedman & Sallan 2012"/>

The great diversity of extant teleosts has been linked to a ] event during their evolution.<ref name="Pasquier et al 2017">{{cite journal |last1=Pasquier |first1=Jeremy |last2=Braasch |first2=Ingo |last3=Batzel |first3=Peter |last4=Cabau |first4=Cedric |last5=Montfort |first5=Jérome |last6=Nguyen |first6=Thaovi |last7=Jouanno |first7=Elodie |last8=Berthelot |first8=Camille |last9=Klopp |first9=Christophe |last10=Journot |first10=Laurent |last11=Postlethwai |first11=John H. |last12=Guigue |first12=Yann |last13=Bob |first13= Julien |title=Evolution of gene expression after whole-genome duplication: new insights from the spotted gar genome |journal=J Exp Zool (Mol Dev Evol) |date=2017 |volume=328 |issue=7 |pages=709–721 |doi=10.1002/jez.b.22770|pmid=28944589 |pmc=5679426 |bibcode=2017JEZB..328..709P }}</ref>
{{clear}}

== Classification ==
{{div col|colwidth=30em}}
* Order †]
* Order †]
* Order †]
* Order †]
* Order †]
* Order †]<ref>{{Cite journal|last=Xu|first=Guang-Hui|date=2021-01-09|title=A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades|url=https://academic.oup.com/zoolinnean/article/191/2/375/5859858|journal=Zoological Journal of the Linnean Society|language=en|volume=191|issue=2|pages=375–394|doi=10.1093/zoolinnean/zlaa053|issn=0024-4082|doi-access=free}}</ref>
* Order †]
* Order †]
* Order †]
* '''Infraclass ]'''
**'''Clade ]'''
***Order †]
***Order †]
***Order †]
***Order ], the ]
**'''Clade ]'''
***Order †?]
***Order {{extinct}}]
***Order ], the ]s
*'''Clade ]'''
**Order †]
** '''Division Aspidorhynchei'''
***Order †]
***Order {{extinct}}]
* '''Infraclass ]'''
** Order †?]
** Order †?]
** Order †]
** Order †]
** Order †]
** Order †]
** Order †]
** Order †]
** '''Superorder ]'''
*** Order †]
***Order ], the bony-tongued fishes
*** Order ], including the ] and ]
** '''Superorder ]'''
*** Order ], including the ]es and ]
*** Order ], the ]es
*** Order ], including the ] and ]s
*** Order ], the true ]s
*** Order ], including the ]
** '''Superorder ]'''
*** Order †]
***Order ], including ]s and ]
** '''Superorder ]'''
*** Order †]
***Order ], including the ]es
*** Order ], including ], ], ], ]es, ], ]s, ]s
*** Order ], including ]s, ]es, ], ]s, ]s.
*** Order ], including ]s and ]
*** Order ], the ]es
** '''Superorder Lepidogalaxii'''
***Order ], the ]
**'''Superorder ]'''
*** Order ], including the ]s and ]s (formerly in Osmeriformes)
*** Order ], including ], ], and ]
*** Order ], the ] and ]
***Order ], the ]
*** Order ], including the ]
** '''Superorder ]''' (may belong in Protacanthopterygii)
*** Order ], the ]
*** Order ], including the ]s and ]es
** '''Superorder ]''' (may belong in Protacanthopterygii)
*** Order ], including the ], ], and ]es
** '''Superorder ]'''
*** Order ], including the ]es
** '''Superorder ]'''
*** Order ], including the ], ] and ]
** '''Superorder ]'''
*** Order †]
***Order †]
***Order ], the ]es
** '''Superorder ]'''
*** Order ], including the ] and ]es
***Order †]
*** Order ], the ]
*** Order ], including the ]es
*** Order ], including ]s
*** Order ], including the ]es
** '''Superorder ]'''
*** Order ], the ]
*** Order ], including ] and ]es
*** Order ], including the ]es
*** Order ], the ]es
*** Order ], including ], ]es
*** Order ], including the ]s
*** Order ], including the ]s and ]es
*** Order ], including the ]
*** Order ], the ]es<ref>In ITIS, ] is placed as the suborder ] of the order ].</ref>
*** Order ] including ]s
*** Order ], including the ] and ]es<ref>In ITIS, ] is placed as the suborder ] of the order ].</ref>
*** Order ], including the ]s
*** Order ], including the ], ]es and ]
*** Order ], the ]es
*** Order ], including ]es and the ]s
*** Order ] 40% of all fish including ]s, ], ]s, ], ]s, ], ]es, ], ], ]
{{div col end}}

== References ==
{{Reflist}}

{{Wikispecies|Neopterygii}}
{{Portal|fish}}
{{diversity of fish}}
{{Evolution of fish|state=collapsed}}
{{Actinopterygii}}
{{Neopterygii}}
{{Taxonbar|from=Q740005}}

]
]
]
]

Latest revision as of 16:26, 7 January 2025

Subclass of fishes

Neopterygii
Temporal range: Early Triassic–Present PreꞒ Ꞓ O S D C P T J K Pg N
Siganus corallinus (a teleost)
Lepisosteus oculatus (a holostean)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
(unranked): Actinopteri
Subclass: Neopterygii
Regan, 1923
Infraclasses

For others, see text

Neopterygii (from Greek νέος neos 'new' and πτέρυξ pteryx 'fin') is a subclass of ray-finned fish (Actinopterygii). Neopterygii includes the Holostei and the Teleostei, of which the latter comprise the vast majority of extant fishes, and over half of all living vertebrate species. While living holosteans include only freshwater taxa, teleosts are diverse in both freshwater and marine environments. Many new species of teleosts are scientifically described each year.

The potentially oldest known neopterygian is the putative "semionotiform" Acentrophorus varians from the Middle Permian of Russia; however, one study incorporating morphological data from fossils and molecular data from nuclear and mitochondrial DNA, places this divergence date at least 284 mya (million years ago), during the Artinskian stage of the Early Permian. Another study suggests an even earlier split (360 myr ago, near the Devonian-Carboniferous boundary).

Vertebrates

Jawless fishes (118 living species: hagfish, lampreys)

Jawed vertebrates

Cartilaginous fishes (>1,100 living species: sharks, rays, chimaeras)

Bony fishes
Lobe-fins

Actinistia (2 living species: coelacanths)

Rhipidistia

Dipnoi (6 living species: lungfish)

Tetrapoda (>30,000 living species: amphibians, mammals, reptiles, birds)

Ray-fins

Cladistia (14 living species: bichirs, reedfish)

Actinopteri

Chondrostei (27 living species: sturgeons, paddlefish)

Neopterygii (>32,000 living species)

Evolution and diversity

Further information: Evolution of fish and Diversity of fish

Living neopterygians are subdivided into two main groups (infraclasses): teleosts and holosteans. Holosteans comprise two clades, the Ginglymodi and the Halecomorphi. All of these groups have a long and extensive fossil record. The evolutionary relationships between the different groups of Neopterygii is summarized in the cladogram below (divergence time for each clade in mya are based on).

Neopterygii 360 mya
Holostei 275 mya

Ginglymodi (7 living species: gars and alligator gars)

Halecomorphi (2 living species: bowfin and eyespot bowfin)

310 mya

Teleostei (>32,000 living species)

Neopterygians are a very speciose group. They make up over 50% of the total vertebrate diversity today, and their diversity grew since the Mesozoic era. However, the diversity of the various groups of neopterygians (or of fishes in general) is unevenly distributed, with teleosts making up the vast majority (96%) of living species.

Early Triassic parasemionotiform Watsonulus is an early neopterygian.

Early in their evolution, neopterygians were a very successful group of fish, because they could move more rapidly than their ancestors. Their scales and skeletons began to lighten during their evolution, and their jaws became more powerful and efficient. While electroreception and the ampullae of Lorenzini are present in all other extant groups of fish (except for hagfish), neopterygians have lost this sense, even if it has later re-evolved within Gymnotiformes and catfishes, which possess non-homologous teleost ampullae.

Only a few changes occurred during the evolution of neopterygians from the earlier actinopterygians. However, a very important step in the evolution of neopterygians is the acquisition of a better control of the movements of both dorsal and anal fins, resulting in an improvement in their swimming capabilities. They additionally acquired several modifications in the skull, which allowed the evolution of different feeding mechanisms and consequently the colonization of new ecological niches. All of these characters represented major improvements, resulting in Neopterygii becoming the dominant group of fishes (and, thus, taxonomically of vertebrates in general) today.

The great diversity of extant teleosts has been linked to a whole genome duplication event during their evolution.

Classification

References

  1. Regan, C. Tate (1923). "The Skeleton of Lepidosteus, with remarks on the origin and evolution of the lower Neopterygian Fishes". Journal of Zoology. 93 (2): 445–461. doi:10.1111/j.1096-3642.1923.tb02191.x.
  2. ^ Nelson, Joseph, S. (2016). Fishes of the World. John Wiley & Sons, Inc. ISBN 978-1-118-34233-6.{{cite book}}: CS1 maint: multiple names: authors list (link)
  3. Broughton, Richard E.; Betancur-R., Ricardo; Li, Chenhong; Arratia, Gloria; Ortí, Guillermo (2013-04-16). "Multi-locus phylogenetic analysis reveals the pattern and tempo of bony fish evolution". PLOS Currents. 5: ecurrents.tol.2ca8041495ffafd0c92756e75247483e. doi:10.1371/currents.tol.2ca8041495ffafd0c92756e75247483e (inactive 1 November 2024). ISSN 2157-3999. PMC 3682800. PMID 23788273.{{cite journal}}: CS1 maint: DOI inactive as of November 2024 (link)
  4. "PBDB". paleobiodb.org. Retrieved 2024-02-26.
  5. Hurley, Imogen A.; Mueller, Rachael Lockridge; Dunn, Katherine A. (21 November 2006). "A new time-scale for ray-finned fish evolution". Proceedings of the Royal Society B. 274 (1609): 489–498. doi:10.1098/rspb.2006.3749. PMC 1766393. PMID 17476768.
  6. Thomas J. Near; et al. (2012). "Resolution of ray-finned fish phylogeny and timing of diversification". PNAS. 109 (34): 13698–13703. Bibcode:2012PNAS..10913698N. doi:10.1073/pnas.1206625109. PMC 3427055. PMID 22869754.
  7. López-Arbarello, A (2012). "Phylogenetic Interrelationships of Ginglymodian Fishes (Actinopterygii: Neopterygii)". PLOS ONE. 7 (7): e39370. Bibcode:2012PLoSO...739370L. doi:10.1371/journal.pone.0039370. PMC 3394768. PMID 22808031.
  8. Betancur-R (2016). "Phylogenetic Classification of Bony Fishes Version 4".
  9. "Actinopterygii". Integrated Taxonomic Information System. Retrieved 3 April 2006.
  10. R. Froese and D. Pauly, ed. (February 2006). "FishBase".
  11. ^ Friedman, Matt; Sallan, Lauren Cole (June 2012). "Five hundred million years of extinczion and recovery: A Phanerozoic survey of large-scale diversity patterns in fishes". Palaeontology. 55 (4): 707–742. Bibcode:2012Palgy..55..707F. doi:10.1111/j.1475-4983.2012.01165.x. S2CID 59423401.
  12. Thomas J. Near; et al. (2012). "Resolution of ray-finned fish phylogeny and timing of diversification". PNAS. 109 (34): 13698–13703. Bibcode:2012PNAS..10913698N. doi:10.1073/pnas.1206625109. PMC 3427055. PMID 22869754.
  13. Romano, Carlo; Koot, Martha B.; Kogan, Ilja; Brayard, Arnaud; Minikh, Alla V.; Brinkmann, Winand; Bucher, Hugo; Kriwet, Jürgen (February 2016). "Permian-Triassic Osteichthyes (bony fishes): diversity dynamics and body size evolution". Biological Reviews. 91 (1): 106–147. doi:10.1111/brv.12161. PMID 25431138. S2CID 5332637.
  14. Electroreception By Theodore Holmes Bullock
  15. Pasquier, Jeremy; Braasch, Ingo; Batzel, Peter; Cabau, Cedric; Montfort, Jérome; Nguyen, Thaovi; Jouanno, Elodie; Berthelot, Camille; Klopp, Christophe; Journot, Laurent; Postlethwai, John H.; Guigue, Yann; Bob, Julien (2017). "Evolution of gene expression after whole-genome duplication: new insights from the spotted gar genome". J Exp Zool (Mol Dev Evol). 328 (7): 709–721. Bibcode:2017JEZB..328..709P. doi:10.1002/jez.b.22770. PMC 5679426. PMID 28944589.
  16. Xu, Guang-Hui (2021-01-09). "A new stem-neopterygian fish from the Middle Triassic (Anisian) of Yunnan, China, with a reassessment of the relationships of early neopterygian clades". Zoological Journal of the Linnean Society. 191 (2): 375–394. doi:10.1093/zoolinnean/zlaa053. ISSN 0024-4082.
  17. In ITIS, Gobiesociformes is placed as the suborder Gobiesocoidei of the order Perciformes.
  18. In ITIS, Syngnathiformes is placed as the suborder Syngnathoidei of the order Gasterosteiformes.
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Extant orders of Actinopterygii (ray-finned fish)
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Neopterygii
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Neopterygii
    • see below↓
Neopterygii
Neopterygii
†Pholidopleuriformes?
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†Platysiagidae
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Holostei
Ginglymodi
Halecomorphi
Teleostei
    • see Teleostei
    • includes the majority of modern fish
Redfieldius sp.

Caelatichthys nitens Feroxichthys panzhouensis Perleidus altolepis Dapedium

Pycnodontiform
Taxon identifiers
Neopterygii
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