Definition of Gnathostomes. Meaning of Gnathostomes. Synonyms of Gnathostomes

- bite in some gnathostomes. Newer research suggests that a branch of placoderms was most likely the ancestor of present-day gnathostomes. A 419-million-year-old...
- ancestral to hagfishes, and finally as the closest jawless relatives of the gnathostomes. This last theory was based on the fact that they seem to have a paired...
- ostracoderms, among others). They are sister to vertebrates with jaws known as gnathostomes, who evolved from jawless ancestors during the early Silurian by developing...
- closely integrated as in modern gnathostomes. These teeth were likely homologous to the teeth of other gnathostomes. One of the largest known arthrodires...
- Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes). They are currently considered to represent a paraphyletic grade of various...
- hypothalamic–pituitary–gonadal axis, a system which once thought to be exclusive to the Gnathostomes. Some species of hagfish reproduce seasonally, stimulated by hormones...
- cyclostomes and gnathostomes went through a genome duplication before their split, and while a second genome duplication occurred in the stem-gnathostomes, the stem-cyclostomes...
- (from Ancient Gr****). It excludes all vertebrates with jaws, known as gnathostomes. Although a minor element of modern marine fauna, jawless fish were prominent...
- †Placodermi (Paleozoic armoured forms; paraphyletic in relation to all other gnathostomes) class Chondrichthyes (cartilaginous fish; 900+ species) class †Acanthodii...
- Vertebrata └─Infraphylum Gnathostomata ├─Placodermi — extinct (armored gnathostomes) └Eugnathostomata (true jawed vertebrates) ├─Acanthodii (stem cartilaginous...