From Wikipedia, the free encyclopedia
Jump to: navigation, search
Temporal range: Triassic - Recent
Arapaima (Arapaima gigas).jpg
Arapaima (Arapaima gigas)
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Superclass: Osteichthyes
Class: Actinopterygii
Subclass: Neopterygii
Infraclass: Teleostei
Superorder: Osteoglossomorpha
Greenwood, Rosen, Weitzman & Myers, 1966

and see text

Specimen of the primitive ichthyodectiform Allothrissops

The Osteoglossomorpha are a group of bony fish in the Teleostei.

Xiphactinus audax three-dimensionally restoreded skeleton in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado

Notable members[edit]

A notable member is the arapaima (Arapaima gigas), the largest freshwater fish in South America and one of the largest bony fishes alive. Other notable members include the bizarre freshwater elephantfishes of family Mormyridae, and the extinct predator, Xiphactinus.


Most osteoglossomorph lineages are extinct today. Only the somewhat diverse "bone-tongues" (Osteoglossiformes) and two species of mooneyes (Hiodontiformes) remain.[1]


  1. ^ See references in Haaramo (2008)