Gnathostomata: General Characters and Its Classification | Zoology
In this article we will discuss about the general characters and classification of Gnathostomata. General Characters of Gnathostomata: 1. Two well formed jaws encircle the mouth aperture in all members of this group. 2. Paired and in some cases jointed appendages are present in Gnathostomata. 3. Calcified, bony skull and vertebra are characteristic features of Gnathostomata. 4. All fishes, amphibians, [...]