Acipenseriformes

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iAcipenseriformes

Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus

Scientific classification

Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Acipenseriformes

Families

Acipenseridae—sturgeons
Polyodontidae—paddlefishes
Chondrosteidae—extinct
Errolichthyidae—extinct

Acipenseriformes are an order of primitive ray-finned fishes that includes the sturgeons and paddlefishes, as well as some extinct families.<ref name="fish">"Acipenseriformes". FishBase. Ed. Ranier Froese and Daniel Pauly. 05 2006 version. N.p.: FishBase, 2006.</ref>

Acipenseriform skeletons are largely cartilage.

[edit] Systematics

[edit] Acipenseriformes

Family Acipenseridae
- Subfamily Acipenserinae
  - Genus Acipenser
    - Acipenser baerii
      - Siberian sturgeon, Acipenser baerii baerii
      - Baikal sturgeon, Acipenser baerii baicalensis
    - Shortnose sturgeon, Acipenser brevirostrum (USA)
    - Yangtze sturgeon, Acipenser dabryanus
    - Lake sturgeon, Acipenser fulvescens (USA)
    - Russian sturgeon, Acipenser gueldenstaedtii
    - Green sturgeon, Acipenser medirostris
    - Sakhalin sturgeon, Acipenser mikadoi
    - Japanese sturgeon, Acipenser multiscutatus
    - Adriatic sturgeon, Acipenser naccarii
    - Fringebarbel sturgeon, Acipenser nudiventris
    - Acipenser oxyrinchus (USA)
      - Gulf sturgeon, Acipenser oxyrinchus desotoi
      - Atlantic sturgeon, Acipenser oxyrinchus oxyrinchus
    - Persian sturgeon, Acipenser persicus
    - Sterlet, Acipenser ruthenus
    - Amur sturgeon, Acipenser schrenckii
    - Chinese sturgeon, Acipenser sinensis
    - Starry sturgeon, Acipenser stellatus
    - European sturgeon, Acipenser sturio (also [wrongly] "Baltic sturgeon")
    - White sturgeon, Acipenser transmontanus
  - Genus Huso
    - Beluga sturgeon, Huso huso
    - Kaluga sturgeon, Huso dauricus
- Subfamily Scaphirhynchinae
  - Genus Scaphirhynchus
    - Pallid sturgeon, Scaphirhynchus albus
    - Shovelnose sturgeon, Scaphirhynchus platorynchus
    - Alabama sturgeon, Scaphirhynchus suttkusi
  - Genus Pseudosaphirhynchus
    - Dwarf sturgeon, Pseudoscaphirhynchus hermanni
    - Syr Darya sturgeon, Pseudoscaphirhynchus fedtschenkoi
    - Amu Darya sturgeon, Pseudoscaphirhynchus kaufmanni

Family Polyodontidae (Paddlefish)
- Genus Polyodon
  - American paddlefish, Polyodon spathula (USA)
- Genus Psephurus
  - Chinese paddlefish, Psephurus gladius