As its name suggests, X-Ray art shows the internal and external features of animals like the barramunda and the kangaroo.

The Queensland lungfish, Neoceratodus forsteri (also known as the Australian lungfish, Burnett salmon, and barramunda) is the sole surviving member of the family Ceratodontidae and order Ceratodontiformes.

The name Ceratodus was given to the settlement about 1922 and derives from that of the Queensland lungfish, neoceratodus forsteri.

Ceratodus takes its name from the lungfish (neoceratodus forsteri) an air-breathing fish which inhabits the nearby Burnett River.

Fossil records of the Queensland lungfish (Neoceratodus forsteri) date back 380 million years, around the time when higher vertebrate classes were beginning to evolve.

They say their studies indicate that the Walla Weir poses no significant threat to Neoceratodus forsteri, as the fish is also known, a species already protected by law from fishing.

The closest living relative of Ceratodus is thought to be the Queensland lungfish, Neoceratodus forsteri, which means "new Ceratodus" in Greek.

Other marine life native to the river include the Queensland Lungfish (Neoceratodus forsteri) and the endangered Mary River Cod (Maccullochella mariensis).

The Queensland lungfish, Neoceratodus forsteri (also known as the Australian lungfish, Burnett salmon, and barramunda) is the sole surviving member of the family Ceratodontidae and order Ceratodontiformes.

The nearby Auburn River National Park is a good location to find Queensland Lungfish (Neoceratodus forsteri), known locally as Ceratodus, a rare living fossil found only in the Burnett and Mary Rivers.