The sharks lived between 20 million and 3.6 million years ago and it is thought they could grow up to 60 feet long.
, this species of shark first appeared on Earth around 20 million years ago before going extinct an estimated 3.6 million years ago. It is thought they could grow to around 60 feet in length.
The paper's authors said those assumptions lacked evidence. Examining two-dimensional charting of the evolution of shark bodies, the authors strongly suggested that there was no relationship between the the charts used in previous studies and the projected shape of the megalodon.
"All previously proposed body forms of Otodus megalodon should be regarded as speculations from the scientific standpoint," Phillip C. Sternes, another co-author of the research, said in a statement.
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