Remains of the Offspring

This is the skull we get from the chest right after the statues in Isle of the Iron Statues. I remember it being used for a repeatable when Turan first came out. Don't remember what exactly happened to that quest. I have way too many of these hoarding space. I just want to be sure before I chuck em. Is there a quest that still uses them? I know there probably isn't but I want to be sure.

It's used only for the 1st time, when you work for the priests, so you don't have to pick them from the box at all. The repeatable quest comes from Artus to kill animals after you finished mapping the island.