Prehistoric giant shark discovered 290 million years ago in

Megalodon sharks ruled the oceans millions of years ago – new analyses of giant fossilized teeth are helping scientists unravel the mystery of their extinction

Prehistoric 80 million year old shark also known as ”the frilled shark” discovered in Awashima, Japan • Frilled sharks are called living fossils

How big was Megalodon compared to a great white shark? - Quora

For the Belt and Road--Seetao

Megalodon, the largest shark ever, may have been a long, slender giant

290-million-year-old shark with large petal-shaped teeth found in China for the first time

Megalodon spotted on sonar? Researchers fooled by Atlantic mackerel

For the Belt and Road--Seetao

The ancient ones - The Australian Museum

My PictureGame Secret Santa sent me an ancient giant shark tooth for Christmas that his dad found in Belgium in the 1980's : r/mildlyinteresting

A rare ancient shark has been identified by New Mexico paleontologists

Study Sheds New Light on Common Ancestor of All Jawed Vertebrates, Paleontology

Rare and 'horrific': Frilled shark startles fishermen in Australia

For the Belt and Road--Seetao

Shark species - The Australian Museum