Ancient Marker Stone Found On Mars?

This object which was found by the curiosity rover, appears to be artificial in nature judging by the design, could it be an ancient marker or boundary stone?

According to wikipedia, a boundary marker, border marker, boundary stone, or border stone is a robust physical marker that identifies the start of a land boundary or the change in a boundary, especially a change in direction of a boundary.

There are several other types of named border markers, known as pillars, obelisks, and corners.

Border markers can also be markers through which a border line runs in a straight line to determine that border, they can also be the markers from which a border marker has been fixed.

These markers are traditionally made of stone, and this particular object looks fashioned in my opinion, possible carved by someone to serve as a marker, just like here on earth.

Because a good portion of the object appears to be buried beneath the surface, we can only speculate at how tall it was or if it had any writing on it, but it certainly looks artificial to me, and could serve as further evidence of past life on mars.

Mars Raw Images Here