Gnathostomata.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

And chimps are still Pan which are still Hominidae which are still Catarrhini, Primates, Eutheria, Mammalia, Therapsida, Synapsida, Amniota, Terrestrial Vertebrates, Sarcopterygii, Gnathostomata, Vertebrata, Craniata, Chordata, Deuterostomia, Bilateria, Animals, Eukaryotes.    From Wordnik.com.  [Don't teach ID -- at least not until our textbook is published - The Panda's Thumb] Reference