Wait a tick...don't skull bones form by intramembranous ossification??? That would mean there would be NO evidence of Haversian Canals in fossilized skulls...hmmm.
Ha! Back in the Coal Age diploic spaces were commonly known as Haversian canals.
Not necessarily. If the Earth, Jupiter, and Mars are in a perfect isoceles triangle...then all bets are off. The laws of physics no longer apply. lol:)