Halecostomi

The Bowfin or mud fish ( Amia calva ) is the only extant species of bowfin -like ( Amiiformes )

The Halecostomi are a group of bony fishes within the ray-finned fishes. Originally comprising two families original, extinct Real bony fish ( Teleostei ), the Pholidophoridae and Oligopleuridae. In the modern, kladistisch dominated hierarchy, they form, as shown in this cladogram, the combined group of Bowfin -like ( Amiiformes ) and genuine bony fish, so close a far larger number of subtaxa one.

True bony fish ( Teleostei )

Bowfin behaved ( Amiiformes )

Gars ( Lepisosteiformes )

Sturgeons ( Acipenseriformes )

Bichirs ( Polypteriformes )

Molecular genetic analyzes of the relationships of ray-finned fishes have shown, however, that the bowfin ( Amia calva ) is closer to the gars ( Lepisosteidae ) is used as the genuine bony fish. For this common grouping of Kahl and gars also the cars already in the classical system name Holostei ( Knochenganoiden ) is utilized. If this grouping in future analyzes consisted have the name Halecostomi would lapse.

The results of the molecular analyzes was confirmed by a comparative study of the skeletal anatomy of the original Neuflossern ( Neopterygii ) with the inclusion of fossil taxa.