In this article we will discuss about Phylum Gnathostomulida:- 1. Habitat of Phylum Gnathostomulida 2. Features of Phylum Gnathostomulida 3. Phylogenetic Relationship. Habitat of Phylum Gnathostomulida: Phylum Gnathostomulida live in the interstitial spaces of marine sands which contain little or no oxygen but sufficient amount of hydrogen sulphide. They have been described from the different […]