New Flosser

New Flosser
Bake fish ( Lepisosteus sp. )
Systematics
Over trunk : Neumünder (Deuterostomia) Trunk : Chordates (chordata) Sub-stem : Vertebrates (vertebrata) Superclass : Jaw mouths (Gnathostomata) Class : Ray fins (Actinopterygii) Subclass : New Flosser
Scientific name
Neopterygii
Regan , 1923

The Neuflosser (Neopterygii) are a subclass of the bony fish (Osteichthyes). Of the recent bony fish, they include the seven species of bonefish (Lepisosteidae), the bald pike ( Amia calva ) and the almost 30,000 species of real bonefish (Teleostei). The only recent bony fish that do not belong to the Neopterygii are the coelacanth ( Latimeria ), the lungfish (Dipnoi), the flossler (Cladista) and the sturgeon (Acipenseriformes).

The Neuflosser can be proven fossil up to the lower carbon .

features

The fin ray carriers (pterygiophores) are equal to the fin rays (Lepidotricha) of the dorsal fin . The suspension of the jaw and the gill cover is done by a new bone, the symplecticum. The hyomandibular, the uppermost bone of the hyoid arch, is connected to the operculare, one of the bones of the gill cover, via a branch. All new flossers lack the acrosome of the sperm .

Systematics

It is undisputed that the Neuflosser are a monophyletic taxon . There are different views about the family relationships between the basic orders. The bone organoids , long considered a paraphyletic group, have recently been revalidated.

• Neuflosser (Neopterygii)
  • Sub-class bone organoids (Holostei)
    • Order Dapediiformes †
    • Order Macrosemiiformes †
    • Order Semionotiformes †
    • Order bonefish (Lepisosteiformes)
    • Order Parasemionotiformes †
    • Order Ionoscopiformes †
    • Order Kahlhechtweise (Amiiformes)
  • Home group Teleostei
    • Order Aspidorhychiformes †
    • Order Pachycormiformes †
    • Order Pycnodontiformes †
  • Sub-class real bony fish (Teleostei)

See also: Systematics of bony fish

literature

• Joseph S. Nelson : Fishes of the World , John Wiley & Sons, 2006, ISBN 0-471-25031-7 .
• Guillaume Lecointre, Hervé Le Guyader: Biosystematics: All organisms at a glance. Springer, Berlin, 2005, ISBN 3540240373 .

Individual evidence

1. ↑ ^{a b} Lance Grande: An Empirical Synthetic Pattern Study of Gars (Lepisosteiformes) and Closely Related Species, Based Mostly on Skeletal Anatomy. The Resurrection of Holostei . In: The American Society of Ichthyologists and Herpetologists Special Publication . 6 (Supplementum for the 2010 Copeia year), 2010, p. 1-871 .

Web links

Commons : Neopterygii  - collection of images, videos and audio files