A groundbreaking archaeological discovery in north-western Western Australia has unveiled evidence that massive sharks once patrolled the coastline some 115 million years ago.

This remarkable finding is largely credited to Dr. Mikael Siversson of the Western Australian Museum, who has reshaped our understanding of one of the Earth’s most formidable predators.

As the head of earth and planetary sciences, Dr. Siversson played an instrumental role in identifying a fossilized super shark species in Australia.

His pivotal discovery in the Gascoyne region of Western Australia included fossilized teeth, offering a glimpse into a long-lost prehistoric era.

“That tooth is 97 million years old, yet it remains razor sharp,” Dr. Siversson shared with 9News.

The teeth helped Siversson and his research team identify something straight out of Jurassic Park, a group of closely related mega sharks that grew to the size of orcas around Darwin and in Queensland.

“They dominated the oceans for about 23 million years,” Siversson said.

Siversson’s original discovery was in 1999 in the Giralia Range on Cardabia Station, in Baiyungu country.

It was a major scientific find but the real importance of the discovery only emerged recently.

He said they were the first modern great sharks to evolve into giant-sized sharks, and it happened off the coast of Australia.

“So that’s why the Western Australian specimen is so critical to the understanding of this entire group of giant predatory sharks,” he said.

His work also identified that colossal sharks swam the oceans 10 million years earlier than previously thought.

All from teeth and vertebrae found in the WA outback.