Wow.. never seen a tree like it. I looked it up and info on it thought that a dryer, more flammable continent is likely to have driven the tree to near extinction over the millennia, leaving just a very small remnant of the Wollemi in a secluded deep gully not far from Sydney. And there these trees remained, hidden, until they were discovered by a canyoning national park worker in 1994.
Very interesting tree.