A recent report claimed that all jawed vertebrates on Earth might have been a same ancestor in the name of Acanthodes bronni. It is believed that the primitive fish used to exist before the oldest sharks and the first bony fishes parted ways.

After spotting the fossils in Europe, North America and Australia, it has been claimed that in comparison to other spiny sharks, they were quite huge as much as a foot long. Instead of having gills, they used to have teeth, and large eyes.

"Our work is telling us the earliest bony fishes looked pretty much like sharks, and not vice versa. What we might think of as shark space is, in fact, general modern jawed vertebrate space”, said Professor Michael Coates, a biologist at the University of Chicago.

It is believed that the acanthodians might have died some 250 million years ago, thereby leaving tiny scales and elaborate suits of fin spines. This is for the first time that researchers have been able to know a lot more about the head of Acanthodes which led to the revelation of similarities between Acanthodes and sharks,.

Published in Nature, the study has curtained shared a lot about the primitive conditions for jawed vertebrates