The python came in at about 10-ft according to the witnesses, and was able to squeeze its victim to death before beginning to consume it.
The fight was captured by a local author, Tiffany Corlis, at Lake Moondarra near Mount Isa.
"It was amazing," she told the BBC. "We saw the snake fighting with the crocodile - it would roll the crocodile around to get a better grip, and coil its body around the crocodile's legs to hold it tight."
Coralis retold the account which began in the water, where the crocodile was trying to hold its head out of the water while the snake was constricting it. when the crocodile had passed, the snake moved around to its front to begin consuming its dinner face first.
It took the snake about 15 minutes to consume the crocodile, whose frame could be seen inside the body of the snake upon completion.
The snake was "definitely very full," when it finished, she said. "I don't know where it went after that - we all left, thinking we didn't want to stick around!"
kill their prey by tightening their coils around their prey until they can no longer breathe or until they suffer from heart failure. They then pursue to eat their prey whole. Their flexible jaws unhinge in order to get large prey into their mouths at one time.
A 2012 study
published in the Royal Society journal Biology Letters suggested that snakes could sense their victim's heartbeat, and let go when it stopped, preventing it from using more energy than required.