Ordre Résumé for Synbranchiformes
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Réf. Princ. |
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Ordre |
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Synbranchiformes spiny eels |
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Classe |
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Teleostei |
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Ordre frère |
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Scorpaeniformes 15 M years |
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Réf. |
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Premier signalement fossile |
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late Tertiary |
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Présent dans |
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Marin |
Eau douce |
Saumâtre |
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Remarque |
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Body elongate; pelvic fins absent; gill openings confined to lower half of body; ectopterygoid enlarged; mesopterygoid reduced or absent; premaxillary nonprotrusible and without ascending process.
All species except three occur in freshwater. |
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Classe Étymologie |
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Greek aktis = ray, thunderbolt, beam + Greek pterygion, diminutive of pteryx = wing, fin. Ref. 45335. |
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Ordre Étymologie |
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Greek, syn = together, adhesion + Greek, brangchia = gills + Latin, forma = shape (Ref. 45335). |
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Familles |
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