A pivotal bone anchor assembly configured for independent positional locking with tooling prior to securing an elongate rod to patient bone with a closure. The assembly includes a bone anchor having a capture portion and a body portion for fixation to patient bone. The assembly also includes a receiving member having an upper portion for receiving the elongate rod and a lower portion for receiving the capture portion, with the bone anchor having pivotal movement with respect to the receiving member. The assembly further includes a locking member in non-threaded engagement with the receiving member and configured for vertical displacement by the tooling into a locked configuration, so as to lock an angular position of the bone anchor relative to the receiving member. The locking member is also releasable by the tooling to re-establish the pivotal movement of the bone anchor with respect to the receiving member.
