An upright stone that has an incised relief on its surface, such as the maya sculpture (1.35), is known as

The Answer is a Stela.
Stela is the upright stone that has incised relief on its surface.
Stela used in ancient civilization, this is a stone which is in upright position. Mostly it was used for the indication of graves but it was also used as dedication. The stone which was fashioned by Maya civilization is known as Maya Stelae.

Ibelieve the answer is the second one. plz don't kill me if i got it wrong. > .<