gnathostome


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Related to gnathostome: superclass Gnathostomata
  • noun

Words related to gnathostome

a vertebrate animal possessing true jaws

References in periodicals archive ?
albus populations, gnathostomes were only collected from swamp eels from the Tampa population (Table 1).
The group gnathostomes, meaning "jaw-mouths," includes tens of thousands of living vertebrate species, ranging from fish and sharks to birds, reptiles, mammals and humans.
Duguay et al [45] studied the Divergence of insulin-like growth factors I and II in the elasmobranch Squalus acanthias and observed that the prototypical IGF molecule duplicated and diverged in an ancestor of the extant gnathostomes.
For example, humans are included in the following nested clades (using the informal names): eukaryotes, animals, deuterostomes, vertebrates, gnathostomes, tetrapods, amniotes, mammals, eutherians, primates, monkeys, apes, and great apes (see Dawkins, 2004 for more information on the ancestry of humans).
After some gnathostomes emerged from the sea to dwell on land, the gill arches that did not form the jaw developed to form the tongue, the thyroid cartilage, the cricoid cartilage, and the structures of the pharynx and hypopharynx.
Whatever their dental details, the Ordovician sharks apparently shared the ancient oceans with true gnathostomes.
His major research area is foodborne zoonotic parasites, including echinostomes, heterophyids, and gnathostomes.