Teleosts related to bony-tongued fishes (skeletons)

This fossil is a two-for-one deal: A whole skeleton of Thryptodus is preserved inside the ribs of Xiphactinus, giving us a rare glimpse of a last meal.

Toothsome Terrors
Carnivorous fishes were the most numerous predators in Late Cretaceous seas. The enormous Xiphactinus to your far left swallowed even large fishes whole (such as the Thryptodus in this specimen’s stomach).