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( Teleost)
Osteoglossomorpha
Elopomorpha
Clupeomorpha
Ostariophysi
Protacanthopterygii
Sternopterygii
Cyclosquamata
Scopelomorpha
Lampridiomorpha
Polymyxiomorpha
Paracanthopterygii
Polymyxiomorpha
Acanthopterygii On the basis of biomass as well as of species count, teleosts are the typical vertebrates, and all other vertebrates are exceptions to the teleost rule.[citation needed] See Actinopterygii for a complete list of orders. Teleosts have a movable maxilla and premaxilla and corresponding modifications in the jaw musculature. These modifications make it possible for teleosts to protrude their jaws outwards from the mouth.[2][3] The caudal fin is homocercal, meaning the upper and lower lobes are about equal in size. The spine ends at the caudal peduncle, distinguishing this group from those in which the spine extends into the upper lobe of the caudal fin. [2] The first fossils of teleosts date back to early Triassic. Teleosts are usually divided into twelve superorders
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Teleost Subcategories
Teleost Articles
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