(Onychophora,(Crustacea,Hexapoda,Myriapoda,(Xiphosura,(Pycnogonida,(Palpigradi,(((Opiliones,(Scorpiones,(Pseudoscorpiones,Solifugae))),(Araneae,(Amblypygi,(Thelyphonida,Schizomida)))),(Ricinulei,Acari)))))));