No one seems interested in making a film about Miocene South America: an island continent populated by strange eutherian herbivores, metatherian carnivores, flightless giant terror birds and land-dwelling crocodiles.
Unique fauna found nowhere else on earth. Australia remains the only island continent today and its marsupials are descendants of Gondwanan metatherians that made their way there via South America.
The Lost World. 1960. Claude Rains, Michael Rennie. Venezuela.