Definition of Gnathostome. Meaning of Gnathostome. Synonyms of Gnathostome

- (gnathos) 'jaw' + στόμα (stoma) 'mouth') are the jawed vertebrates. Gnathostome diversity comprises roughly 60,000 species, which accounts for 99% of...
- Acanthodii or acanthodians is an extinct class of gnathostomes (jawed fishes). They are currently considered to represent a paraphyletic grade of various...
- †Placodermi (Paleozoic armoured forms; paraphyletic in relation to all other gnathostomes) class Chondrichthyes (cartilaginous fish; 900+ species) class †Acanthodii...
- closely integrated as in modern gnathostomes. These teeth were likely homologous to the teeth of other gnathostomes. One of the largest known arthrodires...
- Vertebrata └─Infraphylum Gnathostomata ├─Placodermi — extinct (armored gnathostomes) └Eugnathostomata (true jawed vertebrates) ├─Acanthodii (stem cartilaginous...
- the squamosal (a small cranial bone) meet to form the joint. In most gnathostomes, including early therapsids, the joint consists of the articular (a small...
- (armoured jawed fishes) are shown to be paraphylectic groups, separated from Gnathostomes and Eugnathostomes respectively. Also note that Teleostei (Neopterygii)...
- Lijian; Jia, Liantao; Qiao, Tuo; Zhu, Min (September 2022). "The oldest gnathostome teeth". Nature. 609 (7929): 964–968. Bibcode:2022Natur.609..964A. doi:10...
- armored fish (ostracoderms) declined in diversity, while the jawed fish (gnathostomes) simultaneously increased in both the sea and fresh water. Armored placoderms...
- reveal that they probably originated in the Early Cambrian. The first gnathostome (jawed fish) may have appeared in the Late Ordovician epoch. Chitinozoans...