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