Search Results for: Mammals other than primates
cartilaginous supports for the gills). in terms of number of extant species and absolute numbers of living representatives, the agnathans comprise a very minor segment of the animal world in comparison with the jawed vertebrates, which include fish with hinged jaws, amphibians , reptiles , birds , and mammals
the seas. overview and classification vertebrates (subphylum vertebrata) are generally classified into two groups: the agnatha (jawless vertebrates), and the gnathostomata (jawed vertebrates). the latter group includes fish with hinged jaws and the tetrapods ( amphibians , reptiles , birds , and mammals...
https://www.newworldencyclopedia.org/entry/Agnatha