: This paper in Science Advances uses nitrogen isotopes to show that Megalodon occupied an incredibly high trophic level, higher than any modern marine predator.
If your request was a typo for the prehistoric shark, here are some of the most significant recent scientific papers and reviews: omegalodon
: For a broad overview, the MDPI Review of Neogene Sharks summarizes the current "state of the art" regarding the shark's biology and extinction. : This paper in Science Advances uses nitrogen
: Research available via University of Cambridge explores how competition with the great white shark and climate cooling led to its demise. omegalodon