Footprint

Footprints were marks made by feet.

Susan Foreman discovered giant footprints in the snow on the Plain of Pamir. (TV: The Edge of Destruction)

On Xeros, the Doctor and his companions appeared to not leave footprints in the dust as they had jumped a time track. The Moroks later discovered their footprints. (TV: The Space Museum)

At Emmett's Electronics, Benton discovers K1's giant footprint. (TV: Robot)

On one planet, Xoanon's projections left footprints, even though they were images of the Doctor's face. (TV: The Face of Evil)

On Skaro, a Dalek tracked the Doctor by his footprints. (TV: Destiny of the Daleks)

The Tenth Doctor noted that a footprint did not look like a boot. (TV: Army of Ghosts)

In The Library, the Doctor compared a data ghost to a footprint on the beach with the tide coming in. (TV: Silence in the Library)

While using the Dogbolter Temporal Rocket, Death's Head was briefly sent back in time to the Triassic period, where he left two footprints that would confuse future geologists. (COMIC: Time Bomb!)