Mega teeth hunting

In the ancient seas of the Pacific Ocean, off the Peruvian coast, a group of small Piscobalaena whales are surprised by a huge Megalodon. It hunts them down using the method of hitting from the bottom and ascending at high speed.
Anatomical reference used is Jaime Bran's diagram and Roberto Díaz Sibaja's tips.
https://ui.adsabs.harvard.edu/abs/2017PPP...469...84C/abstract