When Fred and Wilma are deciding where to go on their vacation, the size of the map on the floor changes between shots. It's smaller in the close up shots and larger in the long shots. Also, the map appears to be made of paper, instead of rock or stone, unlike other media such as newspapers, letters, money, etc. in the Flintstone's world.
When Betty mentions a lake near Stone Mountain, Barney marks an X on the map and starts to draw a line and suggests Hyannis Stone for a vacation spot. In the close up shot of where he's finishing the line, the X is gone.
Booming thunder claps and exploding dynamite don't seem to bother baby Pebbles at all.