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Polyodontidae

Polyodontidae
Intervalo temporal: Barremiano–Recente
[1]
Polyodon spathula
Psephurus gladius
Classificação científica e
Domínio: Eukaryota
Reino: Animalia
Filo: Chordata
Classe: Actinopterygii
Ordem: Acipenseriformes
Subordem: Acipenseroidei
Família: Polyodontidae
Bonaparte, 1838
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  • Paleopsephurus
  • Crossopholis
  • Protopsephurus
  • Hesperopsephurus
Wikispecies
Wikispecies
O Wikispecies tem informações sobre: Polyodontidae

Polyodontidae é uma família de peixes actinopterígeos pertencentes à ordem Acipenseriformes, que inclui os peixes-espátula e é exclusiva de água doce.

Os peixes-espátula têm barbatana caudal bifurcada, corpo sem escamas e um focinho longo, em forma de espátula, que lhes dá o nome. Estes peixes habitam rios de curso lento, permanecendo junto ao fundo onde se alimentam sobretudo de plancton. Os peixes-espátula são peixes de grande porte que podem atingir 3 metros de comprimento.

Peixe-espátula do Mississippi, Polyodon spathula

Ambas as espécies são pescadas como alimento e encontram-se ameaçadas de extinção.

Psephurus gladius

Referências

  1. Froese, Rainer, and Daniel Pauly, eds. (2009). "Polyodontidae" in FishBase. January 2009 version.
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Polyodontidae
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