1. Some scientists are already questioning whether Yunnanozoon is really a chordate . 2. Wathan generators create wathans which attach themselves to sufficiently advanced chordates . 3. Vertebrates are the only chordate group to exhibit a proper brain. 4. Image-resolving eyes are present in molluscs, chordates and arthropods. 5. Many believe vertebrates diverged from a common ancestor of chordates and echinoderms. 6. Cephalization is intrinsically connected with a change in chordates from the notochord. 7. According to Dohrn many chordates are degenerated because of their environmental conditions. 8. It has been likened to the chordate " Pipiscus ". 9. PADs are found in chordates but not in lower animals. 10. }} it does not possess any usual chordate synapomorphies.
