From NASA Earth Observatory:
There are few other places like Daintree rainforest in far north Queensland. Thought to be among the most ancient forests in the world, Daintree has many plants with lineages that scientists have traced back hundreds of millions of years to a time when several continents were joined together as Gondwana. All seven of the world’s oldest surviving fern species can still be found in Daintree, as well as 12 of the world’s 19 most primitive flowering plants.