More useless knowledge..;) It's called a coprilite (which is not a skinny police-person..;) Yeah..asteroid, or with the right texture, could be tumbled-over tree trunk, or even a stalagmite or stalagtite (seen in caves or prison camps in ages past..;)

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)