Australotitan
Australia’s largest known dinosaur stretched nearly 100 feet from nose to tail, dwarfing even T-Rex. Formally named in 2021 though found in 2005, this Late Cretaceous titanosaur weighed as much as several elephants combined. “Cooper,” as the locals nicknamed it, reminds us that even well-explored regions still yield massive discoveries. The enormous herbivore trampled across Australia when the continent looked completely different.