The Bluff Downs giant python (Liasis dubudingala) is an extinct species of snake from Queensland, Australia, that lived during the Early Pliocene.

This length rivals the largest extant snake species, the reticulated python from Asia and the green anaconda from South America.

The first fossil remains of Liasis dubudingala were discovered in 1975 by Australian paleontologist Mike Archer in the early Pliocene sediments of the Allingham Formation, Queensland.

Although none of the traits used to define Liasis sensu lato in this manner could be observed in the Bluff Downs giant python, the authors nevertheless assign it to the genus based on general similarities.

Besides Quinkana babarra, other predators of the Bluff Downs Local Fauna include the two marsupials Thylacoleo crassidentatus and Dasyurus dunmalli.

The reticulated python meanwhile, which is close in size to Liasis dubudingala, is known to feed on large prey including but not limited to pigs, deer and primates.

Prey availability is an equally important factor and the Pliocene Bluff Downs was likely similar to the modern Kakadu National Park, although potentially with patches of more closed forest.

[2] Based on environment, size and the favorable climatic conditions, it's possible that Liasis dubudingala could have fed on relatively large prey including juvenile diprotodontids.

At the same time, the high neural spine is a possible indicator that the python was a capable climber that may have also preyed on birds, reptiles and arboreal mammals, which would match the presence of more densely forested areas during the Pliocene.