Istiophoriformes are an order of

bony fish Osteichthyes (), popularly referred to as the bony fish, is a diverse superclass of fish that have skeletons primarily composed of bone tissue. They can be contrasted with the Chondrichthyes, which have skeletons primarily composed of cartilag ...

which is not fully recognized by some taxonomists, with some including the two extant

families Family (from la, familia) is a group of people related either by consanguinity (by recognized birth) or affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its members and of society. Ideall ...

Xiphiidae Swordfish (''Xiphias gladius''), also known as broadbills in some countries, are large, highly migratory predatory fish characterized by a long, flat, pointed bill. They are a popular sport fish of the billfish category, though elusive. Swordfis ...

and Istiophoridae, and others including the family

Sphyraenidae A barracuda, or cuda for short, is a large, predatory, ray-finned fish known for its fearsome appearance and ferocious behaviour. The barracuda is a saltwater fish of the genus ''Sphyraena'', the only genus in the family Sphyraenidae, which was ...

Families

The following families are classified under the Istiophoriformes. Three are extant, and three are extinct: *

(barracudas) *

(swordfish) * Istiophoridae (marlins, spearfish and sailfish) * † Hemingwayidae * † Palaeorhynchidae * †

Blochiidae ''Blochius'' is an extinct genus of prehistoric fish Fish are aquatic, craniate, gill-bearing animals that lack limbs with digits. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well ...

References

{{Taxonbar, from=Q2257233 Ray-finned fish orders