Superphylum Panarthropoda Nielsen, 1995 see [unranked] Panarthropoda Nielsen, 1995 Phylum Onychophora Grube, 1853 - velvet worms Family †Luolishaniidae Hou & Bergström, 1995 Genus †Acinocricus Conway Morris & Robison, 1988 [monotypic] 1 †Acinocricus stichus Conway-Morris & Robison, 1988