[mmiles8]

Ah ha. Looks like his pet was what was a different color, that explains it.

Looks like I was wrong about the third shade. I remembered dark bones being darker. Modern models having multiple shades must have thrown me off.

Couldn't find an old screenshot of the dark Giant Skeleton in Rathe (He's a quest mob, for Caduceus of Sacrament, This link from 2000 refers to him being darker, only dark one in zone), but I did find this screenshot of the a darkbone skeleton from this page:

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But yeah the oasis drybones were white. I could be wrong about the Fear portal darkbones too.

Nice name there Nopie :P

Edit:

There is a rare red boned giant skel. Level 30 or so.. maybe more... for Cleric's awesome 1H Blunt weapon. Drops Ingot of Sacreament. He only spawns at the ruins

Yep, he was just red. My mistake.