gracefully glide through the water

1:20 scale - 92mm

which has led to speculations and reconstructions based on limited data

Livyatan melvillei would have occupied a different ecological niche due to its unique tooth structure and impressive size

This sail was believed to have multiple functions

Pachycephalosaurus Paleógeno gracefully glide through the waterPachycephalosaurus (P. wyomingensis `Thick headed Lizard) was a browsing herbivorous dinosaur that lived during the Late Cretaceous period, approximately 70 million years ago. It was a bipedal dinosaur with a large, rounded skull, with a thick cranial vault that was probably used in fights for dominance between males. Pachycephalosaurus was around 5 meters long, 2. 5 meters tall and weighed around 2,000 kilograms, and although its exact diet is