any vertebrate of the superclass Gnathostomata, having a mouth with jaws, including all vertebrates except the agnathans
Derived forms
gnathostomatous (ˌgnathoˈstomatous)
adjective
Word origin
from New Latin Gnathostomata, from Greek gnathos jaw + stoma mouth
Examples of 'gnathostome' in a sentence
gnathostome
Results were interpreted within a phylogenetic context of major gnathostome lineages.
Murilo Carvalho, Flávio Alicino Bockmann, Marcelo Rodrigues de Carvalho 2013, 'Homology of the Fifth Epibranchial and Accessory Elements of the Ceratobranchialsamong Gnathostomes: Insights from the Development of Ostariophysans', PLoS ONE10.1371/journal.pone.0062389. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Lampreys, together with hagfishes, represent the sister group of gnathostome vertebrates.
Manuel A Pombal, Rosa eÁlvarez-Otero, Juan ePérez-Fernández, Cristina eSolveira, ManueleMegías 2011, 'Development and organization of the lamprey telencephalon with special reference tothe GABAergic system', Frontiers in Neuroanatomyhttp://journal.frontiersin.org/Journal/10.3389/fnana.2011.00020/full. Retrieved from DOAJ CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)
Placoderms are considered as the first jawed vertebrates and constitute a paraphyletic group in the stem-gnathostome grade.
Vincent Dupret, Sophie Sanchez, Daniel Goujet, Per Erik Ahlberg 2017, 'The internal cranial anatomy of Romundina stellina Ørvig, 1975 (Vertebrata, Placodermi,Acanthothoraci) and the origin of jawed vertebrates-Anatomical atlas of a primitivegnathostome.', PLoS ONEhttp://europepmc.org/articles/PMC5295682?pdf=render. Retrieved from PLOS CC BY 4.0 (https://creativecommons.org/licenses/by-sa/4.0/legalcode)