[DouglasKC]

The researchers found that, between 86 and 79 million years ago, the crust and mantle had rotated around Earth's outer core and back again — causing the entire planet to tilt and then right itself like a roly-poly toy....

Read Charles Hapgood...he proposed this decades ago and wrote quite a few good books. He was laughed off as a kook...looks like he's right. He considered that ice ages were the result of the earths' crust doing exactly this.

[Openurmind]

Yep, sure enough. And it answers a lot of puzzles.