Gnathostomata

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Related to gnathostome: superclass Gnathostomata

Gnathostomata

[‚nā·thə′stō·məd·ə]
(invertebrate zoology)
A suborder of echinoderms in the order Echinoidea characterized by a rigid, exocyclic test and a lantern or jaw apparatus.
(vertebrate zoology)
A group of the subphylum Vertebrata which possess jaws and usually have paired appendages.

Gnathostomata

 

higher vertebrates having jaws, paired nostrils, and paired limbs. The Gnathostomata include fish, amphibians, reptiles, birds, and mammals.

References in periodicals archive ?
Increased global trade of live fish increases the risk that gnathostomes and other fish-borne parasites will be introduced into regions along with their introduced hosts.
Furthermore, the analysis demonstrated that all of these early members of the modern gnathostomes are clearly separated from what now appear to be the most primitive vertebrates with jaws: a collection of armored fishes called placoderms.
Support for the forebrain in gnathostomes is provided by the paired polar bodies and anterior trabeculae.
Other paleontologists, however, argue that gnathostomes may not have evolved that early.