If Pangea only broke up late, wouldn’t the land mass that is now Antarctica have been located a lot closer to the Equator?
How do we know that these were cold areas?
Cart before the horse syndrome, if you ask me.
If there’s anything to any of that. :’)
Antarctica has fossils from at least one temperate species — one that would *not* survive there today — and (despite one attempt by some simpleton to “debunk” it) those fossils are under 3 million years old. That’s not enough time for the continent to shift enough. :’)