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Allikas: Vikipeedia

Fossiilide leiud: hilis-devon – tänaseni
Tähniksalamander (Salamandra salamandra)

Tähniksalamander (Salamandra salamandra)
Riik Loomad Animalia
Hõimkond Keelikloomad Chordata
Alamhõimkond Selgroogsed Vertebrata
Ülemklass Tetrapoodid Tetrapoda
Broili, 1913

Kahepaiksed Amphibia

Tetrapoodid (Tetrapoda) on selgroogsete ülemklass, kuhu kuuluvad nelja jäsemega loomad. Kahepaiksed, roomajad (kaasa arvatud jalutud maod), dinosaurused, linnud ja imetajad on kõik tetrapoodid. Kõige varajasemad tetrapoodid olid Devoni ajastu keskel elanud õhku hingavad kahepaiksed. Nende eellased olid sagaruimsed kalad (Sarcopterygii).[1]

Vaata ka


  1. Narkiewicz, Katarzyna; Narkiewicz, Marek. "The age of the oldest tetrapod tracks from Zachełmie, Poland". Lethaia. 48 (1): 10–12. DOI:10.1111/let.12083. ISSN 0024-1164.
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