Temporal erasure

Temporal erasure was the removal of an object or individual from time and space, as if they had never existed.

Aboard the Byzanitum, a crack erased several clerics of the Church. In quick succession, Crispin, Phillip, Pedro and Marco all came into contact with the crack and disappeared. Though the clerics were oblivious to what was going on, their memories of their lost colleagues being erased with them, Amy Pond was able to remember them, having travelled through time. Soon after, the Eleventh Doctor used the ship's gravity to send the Weeping Angels, led by Angel Bob, falling into the crack. (TV: Flesh and Stone)