This phylum's most primitive species include the tunicates and lancelets. All members of this phylum have an iodine storage organ called an endostyle,
This phylum's most primitive species include the tunicates and lancelets. All members of this phylum have an iodine storage organ called an endostyle, along with pharyngeal slits and a post-anal tail. The early (*) notochord disappears during development of this phylum's vertebrates. Containing the fish, amphibians, reptiles, birds, and mammals, for 10 points, name this phylum of backboned animals.
This phylum's most primitive species include the tunicates and lancelets.