Helicoprion is a long-lived genus of extinct, shark-like eugeneodontid holocephalid fish. Almost all fossil specimens are of spirally arranged clusters of the individuals’ teeth, called “tooth whorls.” Helicoprion first arose in the oceans of the early Permian 290 million years ago.
There are many species of shark family check out below names & Sizes of each shark.The biggest shark is the Whale shark, which can be up to 46 feet (14 m) long. The smallest shark is the Spined Pygmy shark, which, when fully-grown, is only7-8 inches (18-20 cm) long. Most sharks are intermediate in size, about the same size as people,5-7 feet (1.5-2.1 m) long.
Survived the Permian–Triassic extinction event, and eventually became extinct during the Early Triassic,250 million years ago. Its name is Greek for “spiral saw”. The closest living relatives of Helicoprion (and other eugeneodontids) are the chimeras.
Now Imagine this species living today.
Jaw fossil found which clearly shows its dangerous capabilities
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