A tooth from a megalodon, a long-extinct giant shark, was found in the eastern districts of Grand Cayman last month, according to the Department of Environment.
The DoE said that a man found the tooth in the sand at a development site early in January.
DoE scientists examined and measured the tooth, which was a little over 4 inches (10.25cm) long.
A DoE spokesperson said that the man who found the tooth, who wishes to remain anonymous, gave it to the department for further study.
The name megalodon, originally derived from the ancient Greek, means ‘large tooth’.
Researchers believe the megalodon became extinct between 3.5 million and 2.6 million years ago. It was the largest shark ever to swim the oceans and was the apex predator of the global marine environment for 13 million years.
“Adult megalodons were believed to have grown to between 15 and 18 metres (48 to 60 feet) long. That’s three times longer than an adult great white shark and about six times longer than the biggest Caribbean reef shark,” DoE said in a statement to the Cayman Compass.