9NewsAU.com. It is believed that the species had a very specialised diet which may have consisted of the giant sperm whale Leviathan melvillei.This particular diet would have put the sea-creature at a disadvantage due to cooling climates during the Miocene and Pliocene period – leading to changes in its preferred diet.Research conducted by 9 News, inspected the stomach contents of modern Lamniformes and found that most species tend to feed on specific food groups.The thresher and mako sharks mainly feed on bony fish.
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