Megalodon shark are though that they got extinct about 1.5 million years ago no one knows how exactly did that happened, one of the most biggest, powerful and apex predator just vanished and became history.
SO how did we learned about this giant shark, it was first identified by it’s teeth by a danish naturalist in 1667, while most of the people though a triangular shaped engraved fossil to be a tongue of dinosaurs or related predators which were also extinct many years ago, but a danish researcher realized that these triangular shaped fossils were actually teeth of giant shark, since the size of teeth was enormous like more than 7 inch, hence these sharks were named megalodon meaning big teeth.
A swiss naturalist first named this shark carcharodon megalodon because there big triangular teeth resembled that of great white shark, that’s why these sharks were called carcharodon. Most of the fossil remain that was found consisted of teeth, most of the information about megalodon sharks were obtained from the fossil teeth remaining’s. There were teeth were largest teeth then any known shark specie measuring over 7 inch.
The fossil remains of shark megalodon were excavated from almost all over the world indicating that these sharks were highly mobile these parts of the world include Europe, India, Australia, Africa, North and South America, Japan and other parts of the world. The earliest fossil remains of megalodon have been indicated to be 28 million years ago, while most of the scientists believe that megalodon shark got extinct some believe the they might still be living in the depths of oceans but there is no proof of this theory.