According to the numbers provided here the land mass once located almost 6,000 miles away 375 million years ago had to move at a rate of 2.2 inches per year toward the north pole; is that correct?
Well, I suspect the total motion is less than 6,000 miles as Ellesmere Island isn't RIGHT at the north pole today, and it didn't have to be RIGHT at the equator...just near it...375 million years ago. so maybe actually 5,000 miles.
But 2.2 inches a year is a typical plate motion speed; North America is moving about that fast right now. The fastest plate in the world is moving over 9 inches a year.