Acipenseriformes
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Acipenseriformes
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.^[1]

Notable characteristics of Acipenseriformes include:

• Cartilaginous endoskeleton
• Lack of vertebral centrum
• Spiral valve intestine
• Conus arteriosus

Systematics

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 Pseudoscaphirhynchus
      • 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

External links

• Photos and illustrations of Acipenseriformes
• CITES finalizes 2006 caviar export quotas

References

1. ^ "Acipenseriformes". FishBase. Ed. Ranier Froese and Daniel Pauly. 05 2006 version. N.p.: FishBase, 2006.

• Martin Hochleithner and Joern Gessner, The Sturgeons and Paddlefishes of the World: Biology and Aquaculture
• Martin Hochleithner, Joern Gessner, and Sergej Podushka, The Bibliography of Acipenseriformes