Order Summary for Cypriniformes

  Main Ref
:
  Order
:
Cypriniformes carps
  Class
:
Actinopterygii
  Sister Order
:
Characiformes 150 M years
  Ref..
:
  First Fossil Record
:
late Jurassic
  Occurs in
:
Marine
Fresh
Brackish
  Remark
:
Kinethmoid present (a median bone between ascending processes of premaxillae); palatine articulating in a socket of the endoptrygoid; fifth ceratobranchial (the pharyngeal bone) enlarged, with teeth ankylosed to the bone (bound by collagenous fibers to the bone in other ostariophysans with teeth, pharyngeal teeth absent in gyrinocheilids); pharyngeal teeth opposed to enlarged posterior process of basioccipital bone (which encloses the dorsal aorta) rather than to upper pharyngeal elements, the basioccipital process against which the pharyngeal teeth press usually covered by a pad (toug horny pad in cyprinids, soft pad in catostomids); ascending process to premaxillae; upper jaw usually protractile; mouth (jaws and palate) always toothless; adipose fin absent (except in some cobitoids); head almost always scaleless; branchiostegal rays three; spinelike rays in dorsal fin of some species. Only two species occur in true marine waters as diadromous species, Tribolodon brandtii (Dybowski, 1872) and Tribolodon sachalinensis (Nikolskii, 1889).
  Classetymology
:
Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.
  Orderetymology
:
Greek, kyprinos = goldfish + Latin, forma = shape. 1828 (Ref. 45335).
  Families
: