Neopterygii

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Neopterygii
Temporal range: Early Triassic–Present
Siganus corallinus (a teleost
)
holostean
)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
(unranked): Actinopteri
Subclass: Neopterygii
Regan, 1923[1]
Infraclasses

For others, see text

Neopterygii (from Greek νέος neos 'new' and πτέρυξ pteryx 'fin') is a

freshwater and marine environments. Many new species of teleosts are scientifically described each year.[2]

The oldest known neopterygian is the putative "

myr ago, near the Devonian-Carboniferous boundary).[6]

Vertebrates

lampreys
)

Jawed vertebrates

chimaeras
)

Bony fishes
Lobe-fins

Actinistia (2 living species: coelacanths
)

Rhipidistia

Dipnoi (6 living species: lungfish
)

birds
)

Ray-fins

bichirs, reedfish
)

Actinopteri

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 (

mya are based on[12]
).

Neopterygii 360 
mya
mya

Ginglymodi (7 living species: gars and alligator gars)

Halecomorphi (1 living species: bowfin)

310 
mya

Teleostei
(>32,000 living species)

Neopterygians are a very speciose group. They make up over 50% of the total

fishes in general) is unevenly distributed, with teleosts making up the vast majority (96%) of living species.[2]

Early Triassic parasemionotiform Watsonulus is an early neopterygian

Early in their

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.[14]

Only a few changes occurred during the evolution of neopterygians from the earlier

vertebrates in general) today.[11]

The great diversity of extant teleosts has been linked to a whole genome duplication event during their evolution.[15]

Classification

References

  1. doi:10.1111/j.1096-3642.1923.tb02191.x
    .
  2. ^
    ISBN 978-1-118-34233-6.{{cite book}}: CS1 maint: multiple names: authors list (link
    )
  3. PMID 23788273.{{cite journal}}: CS1 maint: DOI inactive as of February 2024 (link
    )
  4. ^ "PBDB". paleobiodb.org. Retrieved 2024-02-26.
  5. PMID 17476768
    .
  6. PMID 22869754
    .
  7. 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. ^
    S2CID 59423401
    .
  12. PMID 22869754
    .
  13. S2CID 5332637
    .
  14. ^ Electroreception By Theodore Holmes Bullock
  15. PMID 28944589
    .
  16. ISSN 0024-4082
    .
  17. Gobiesocoidei of the order Perciformes
    .
  18. Gasterosteiformes
    .
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