Kingdom Animalia Linnaeus, 1758 - animals Phylum Onychophora Grube, 1853 - velvet worms 1 Family Peripatidae Evans, 1901 2 Family Peripatopsidae Bouvier, 1907 3 Family? †Succinipatopsidae Poinar, 2000 4 Family? †Tertiapatidae Poinar, 2000