(Tunicata,(Cephalochordata,(Myxinoidea,(Petromyzontida,(Conodonta,((Astraspis,(Heterostraci,Arandaspida)),((Loganellia,((Eriptychius,Jawed_vertebrates),(Osteostraci,Galeaspida,Pituriaspida))),(Anaspida,(Jamoytius,Euphanerops)))))))));