The oldest fish fossil found in Australia is 380 million years old

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The discovery in Australia of an extinct lobe-finned fish from the Middle-Late Devonian period, which took place over about 380 million years ago, was the discovery of a sleek species with large canines and bony scales, which have been discovered around the world.

According to Interesting Engineering, there was once a time when rivers flowed over what is now dry land in what is now Australia, and this predatory aquatic animal flourished in what is now arid and deserted land.

It was recently discovered that a species of fish called Harajicadectes zhumini has been named by palaeontologists at Flinders University.

There are fossilised remains that were found away from Alice Springs in the Harajica Sandstone Member, an ancient fossil location in Australia’s Northern Territory that is located nearly 200 kilometres west of the city.

According to the fossilised bones of this species, it is estimated that the maximum size of adults of this species was 40 cm.

There has been a recent discovery of a new species belonging to the ancient Tetrapodomorph lineage that differs from normal Tetrapodomorphs biologically.

It was found during the examination of the specimen’s skull that there were a number of large holes located in the upper part.

A fossil examination led by Brian Choo, who led the group responsible for the forensic analysis of the fossil, indicates that the fish exhibited spiraled structures that were likely to facilitate surface air-breathing, a phenomenon similar to that of modern African bichir fish.

This feature appeared in several Tetrapomodorph lineages at the same time during the Middle-Late Devonian Eocene about the same time,” Choo told me about the feature appearing in so many Tetrapomodorph lineages at the same time.

There are several different extinct lobe-finned fish species, as well as the Gogonasus from Western Australia, that have been found to be endowed with the remarkable biological attribute of huge spires, as explained by the authors in their paper.

This characteristic was also found in Pickeringius, a ray-finned fish which was discovered in 2018 in Western Australia, which is unrelated to the other ray-finned fish species.

Timenews provided that information. 

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