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Gnathostomata
(redirected from Jawed fish)

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Noun1.Gnathostomata - comprising all vertebrates with upper and lower jaws
superclass Gnathostomata
Craniata, subphylum Craniata, subphylum Vertebrata, Vertebrata - fishes; amphibians; reptiles; birds; mammals
gnathostome - a vertebrate animal possessing true jaws
class - (biology) a taxonomic group containing one or more orders
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Warr contends that the newly identified genes probably do represent the first diversified V-region families to be found in animals more primitive than jawed fish.
Hints of primitive antibodies. (First Line of Defense) by Marzuola, C. / Science News
He notes that recent fossil finds from China indicate the existence of several different jawed fish early in the Silurian, which began 438 million years ago.
The first shark: to bite or not to bite? by Monastersky, Richard / Science News
 
 
 
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