Last Updated
：2025/11/23
gnathostome
（ plural ）
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(zoology) Any vertebrate with jaws, including amphibians, reptiles, mammals, and most modern fish, in contrast with the Agnatha
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gnathostome
The emergence of the gnathostome during the Silurian period marked a turning point in vertebrate evolution.
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The emergence of the gnathostome during the Silurian period marked a turning point in vertebrate evolution.
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