Gnathostomata(redirected from Gnasthostomata)
Also found in: Dictionary, Thesaurus, Medical.
A suborder of echinoderms in the order Echinoidea characterized by a rigid, exocyclic test and a lantern or jaw apparatus.
A group of the subphylum Vertebrata which possess jaws and usually have paired appendages.
higher vertebrates having jaws, paired nostrils, and paired limbs. The Gnathostomata include fish, amphibians, reptiles, birds, and mammals.