Did women wipe in stoneage?

I'm a bit curious about female wiping after peeing. I mean most TG stories display it as something utterly necessary, or really bad things happen. I kind of wonder what women did in stone age when they didn't have toilet paper. Did they use fur, or did they not wipe at all?
Is wiping really that important for genetic girls, or is it more a problem for t-girls?

Just curious,
Beyogi