There is a heap of stones, and one stone laid on the heap having upon it the footmark of a dog.
From the en.wikipedia.org
Is this the footmark of T-Rex?
From the metro.co.uk
England's fielders are returning the ball to Prior on the bounce to try to scuff the ball up and it backfires when the ball hits a footmark and bounces over Prior's head.
From the telegraph.co.uk
Dar's late intervention on Prior's behalf also cost them heavily, the umpire having made his decision in the affirmative then noting Johnson's footmark on the crease and asking for a check.
From the guardian.co.uk
More examples
Footprint: a mark of a foot or shoe on a surface; "the police made casts of the footprints in the soft earth outside the window"