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Jawless Fish (Noun)

Meaning

Eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms.

Classification

Nouns denoting animals.

Examples

  • Jawless fish were the earliest known vertebrates, appearing around 530 million years ago during the Cambrian period.
  • These eel-like jawless fish dominated the early oceans before eventually being outcompeted by the jawed fish.
  • Hagfish, one type of jawless fish, produce a unique slime that can help them evade predators.
  • Scientists study the development of jawless fish to better understand how the jaw evolved in other vertebrates.
  • Jawless fish like lampreys and hagfish continue to thrive in modern oceans despite the rise of jawed competitors.

Synonyms

  • Jawless Vertebrate
  • Agnathan

Hypernyms

  • Aquatic Vertebrate

Hyponyms

  • Conodont
  • Cyclostome
  • Lamper Eel
  • Slime Eels
  • Ostracoderm
  • Anaspid
  • Heterostracan
  • Osteostracan
  • Lamprey
  • Hagfish
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