From Medieval Latin, from Ancient Greek ἀμφίβια (amphíbia), nominative neuter plural of ἀμφίβιος (amphíbios, “two types of life”), from ἀμφί (amphí, “of both kinds”) + βίος (bíos, “life”).

Amphibia

1. A taxonomic class within the superclass Tetrapoda – all amphibians.

• (class in Tetrapoda): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Vertebrata – subphylum; Gnathostomata – infraphylum; Tetrapoda – superclass^[1]

• (class): Lissamphibia (modern amphibians: frogs, caecilians, and salamanders) (subclass)
  • †Labyrinthodontia, †Lepospondyli (extinct subclasses)
  • Gerobatrachus (genus, incertae sedis)
• (class in Tetrapoda): Anura, Caudata, Gymnophiona – orders^[1]

• (class in Tetrapoda): Mammalia, Reptilia^[1]

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  Amphibia on Wikipedia.Wikipedia
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  Amphibia on Wikispecies.Wikispecies
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  Category:Amphibia on Wikimedia Commons.Wikimedia Commons
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  Amphibia (classifications) on Wikispecies.Wikispecies
• Amphibia at the Tree of Life Web Project