Temporal displacement

A temporal displacement was a temporal phenomenon in which a certain element from one time period was misplaced into another time period.

Whitaker used time eddys to transport dinosaurs from the past to 1970s London as part of Operation Golden Age. A 12th century peasant was inadvertently transported too. As the Third Doctor noted, every temporal displacement caused localised distortion in time; as the people in the immediate vicinity were concerned, time literally ran backwards. As such, they would have no recollection of what had occurred. (TV: Invasion of the Dinosaurs)