Biology:Actinopteri

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Short description: Group of fishes

Actinopteri
Atlantic sturgeon flipped.jpg
Atlantic sturgeon (Chondrostei)
Salmo salar flipped.jpg
Atlantic salmon (Neopterygii)
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
(unranked): Actinopteri
Cope, 1871
Subclasses

Actinopteri /æktɪˈnɒptəraɪ/ is the sister group of Cladistia (bichirs) in the class Actinopterygii (ray-finned fish).

Dating back to the Permian period, the Actinopteri comprise the Chondrostei (sturgeons and paddlefish), the Holostei (bowfins and gars), and the teleosts. In other words all extant ray-finned fish minus the bichirs.

In this clade the lungs have evolved into a swim bladder.[1]

Classification

The following cladogram[2][3][4][5] summarizes the evolutionary relationships of extant Actinopteri. Divergence time for each clade in mya are based on:[6]

Actinopteri 400 mya
Chondrostei

Acipenseriformes (sturgeons, paddlefish) Paddlefish (white background).jpg

 
Neopterygii 360 mya
Holostei 275 mya
Ginglymodi

Lepisosteiformes (gars, alligator gars) Alligator gar fish (white background).jpg

 
Halecomorphi

Amiiformes (bowfin) Amia calva (white background).jpg

 
 
 

Teleostei 310 mya Common carp (white background).jpg

 
 
 

References

  1. ↑ Dorsoventral inversion of the air-filled organ (lungs, gas bladder) in vertebrates: RNA-sequencing of laser capture microdissected embryonic tissue
  2. ↑ Betancur-R (2016). "Phylogenetic Classification of Bony Fishes Version 4". https://sites.google.com/site/guilleorti/classification-v-4. 
  3. ↑ Nelson, Joseph, S. (2016). Fishes of the World. John Wiley & Sons, Inc. ISBN 9781118342336. 
  4. ↑ "Actinopterygii". Integrated Taxonomic Information System. https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=161061. 
  5. ↑ R. Froese and D. Pauly, ed (February 2006). "FishBase". http://www.fishbase.org. 
  6. ↑ Thomas J. Near (2012). "Resolution of ray-finned fish phylogeny and timing of diversification". PNAS 109 (34): 13698–13703. doi:10.1073/pnas.1206625109. PMID 22869754. 

Wikidata ☰ Q343460 entry



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