Ordre Résumé for Gasterosteiformes

  Réf. Princ.
:
  Ordre
:
Gasterosteiformes sticklebacks and seamoths
  Classe
:
Actinopterygii
  Ordre frère
:
Syngnathiformes 15 M years
  Réf..
:
  Premier signalement fossile
:
late Tertiary
  Présent dans
:
Marin
Eau douce
Saumâtre
  Remarque
:
Pelvic girdle never attached directly to the cleithra; supramaxillary, orbitosphenoid, and basisphenoid absent; postcleithrum a single bone or absent; branchiostegal rays 1-5; body often with armor of dermal plates; mouth usually small. About 19 species are restricted to freshwater, and another 40 species are found in brackish water (some being variously diadromous or at lest able to commonly enter freshwater and marine water).
  ClasseÉtymologie
:
Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335.
  OrdreÉtymologie
:
Greek, gaster = stomach + Greek, + Greek, osteon = bone + Latin, forma = shape (Ref. 45335).
  Familles
:

Ref.
[ e.g. 9948]                       
Glossary
                    [ e.g. cephalopods]

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