A man discovered teeth from a 25-million-year-old mega shark along the coast of Australia. (Photo: Museums Victoria)

Man finds tooth from 25-million-year-old mega shark twice the size of great white in Australia

A shark twice the size of a great white once fed off the waters of Australia. 

Amateur fossil hunter Philip Mullaly was walking along the coast in Jan Juc in 2015 when he noticed something shimmering in a boulder.

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He uncovered three nearly three-inch-long teeth. Recognizing the significance of the find, he contacted Dr. Erich Fitzgerald, curator of vertebrate paleontology at Museums Victoria.

Fitzgerald determined they were from a nearly 30-foot great jagged narrow toothed shark, confirming the apex predator roamed the coast of Australia 25 million years ago feeding off ancient whales, according to Museums Victoria. It is only the third discovery of the species in the world. The others were in New Zealand and Belgium.

"If you think about how long we've been looking for fossils around the world as a civilization -- which is maybe 200 years -- in (that time) we have found just three (sets of) fossils of this kind on the entire planet, and this most recent find from Australia is one of those three," Fitzgerald told CNN.

The species, carcharocles angustidens, is an ancient cousin to megalodon, thought to be the largest shark at an estimated 60 feet which became extinct about 2.6 million years ago, the Australian Associated Press reported.

Fitzgerald, noting the teeth were from the same species, led teams to further excavate the area in 2017 and January 2018 where they discovered more than 40 more teeth and part of a vertebra. Most belonged to the narrow-toothed shark, however many more smaller teeth, from the sixgill shark were found, suggesting they fed on the larger predator after it died. 

An illustration of a great jagged narrow toothed shark being eaten by sixgill sharks. (Photo: Museums Victoria)

“Sixgill sharks still live off the Victorian coast today, where they live off the remains of whales and other animals,” Fitzgerald said in a statement. “This find suggests they have performed that lifestyle here for tens of millions of years.”

Mullaly donated the teeth to the museum where they are on display for the next six months.

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