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Kopskalad

Allikas: Vikipeedia

Kopskalad
Fossiilide leiud: vara-devon - retsentne
Uussarvhammas (Neoceratodus forsteri)

Uussarvhammas (Neoceratodus forsteri)
Taksonoomia
Riik Loomad Animalia
Hõimkond Keelikloomad Chordata
Alamhõimkond Selgroogsed Vertebrata
Klass Sagaruimsed Sarcopterygii
Alamklass Kopskalad Dipnoi
Müller, 1844

Kopskalad ehk kopskalalaadsed (Dipnoi ehk Dipneustomorpha) on sagaruimsete kalade klassi alamklass. Kopskaladel nagu nimigi vihjab on arenenud primitiivsed kopsud, millega nad saavad hingata õhuhapnikku. Samuti on neil teisigi ürgseid tunnuseid: näiteks niinimetatud lihasuimed ja hästiarenenud sisemine toes.

Tänapäeval elavad kopskalad ainult Aafrikas, Lõuna-Ameerikas ja Austraalias.

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Kopskalad
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