Liasis dubudinala is the largest snake known from Australia, estimated to have been about 9 metres in length. The only known specimen of Liasis dubudinala was found at Bluff Downs in northeastern Queensland, and is Pliocene in age (about 4.5 million years old). A snake of this size may have taken juvenile diprotodontids, birds, reptiles and arboreal mammals, all common at Bluff Downs.
The Bluff Downs region during the Pliocene was an extensive wetlands bordered by patches of closed forest, perhaps like the present-day Kakadu National Park in the Northern Territory.
