Protacanthopterygii

Taxobox
name = Protacanthopterygii

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image_width = 250px
image_caption = Atlantic salmon ("Salmo salar")
domain = Eukaryota
regnum = Animalia
subregnum = Eumetazoa
superphylum = Deuterostomia
phylum = Chordata
subphylum = Vertebrata
infraphylum = Gnathostomata
superclassis = Osteichthyes
classis = Actinopterygii
subclassis = Neopterygii
infraclassis = Teleostei
superordo = Protacanthopterygii
superordo_authority =
subdivision_ranks = Order
subdivision =
Esociformes
Osmeriformes
Salmoniformes

Protacanthopterygii is the taxon superorder of bony ray-finned fish. [ [http://www.encyclopedia.com/doc/1O8-Protacanthopterygii.html A Dictionary of Zoology 1999, originally published by Oxford University Press 1999] ]

Protacanthopterygii is composed of primitive teleosts. Their common fish anatomy usually include: lack of specialization; greater than 24 vertebrae; adipose fin; mesocoracoid bone; glossohyal teeth; non-protrusible upper jaw ; proethmoid and several perichondral ethmoid bones commissural fibers; one supraorbital foramen and no gular plate. [(2007). In Encyclopædia Britannica. Retrieved November 17, 2007, from Encyclopædia Britannica Online: http://www.britannica.com/eb/article-63657]

References

External links

*ITIS | ID = 161928 | taxon = Protacanthopterygii |date= 17 November | year = 2007
* [http://animaldiversity.ummz.umich.edu/site/accounts/classification/Protacanthopterygii.html Animal Diversity]