Pachycephalosaurus skull juvenile Diprotodon their body size decreased over

their body size decreased over time as the Carboniferous progressed and reached the Permian

These horns were probably used in intraspecific confrontations and as a defense against predators

The skull of Arambourgiania

Its scientific name

Pachycephalosaurus skull juvenile Diprotodon their body size decreased overThe skull of Pachycephalosaurus , or "fat headed lizard," is a marvel of paleontology that offers fascinating details about the anatomy and behavior of these herbivorous dinosaurs from the Late Cretaceous period. This distinctive skull features a number of unique characteristics that make it unmistakable. With its thick, rounded bony dome on top of its skull, Pachycephalosaurus likely used its head as a weapon during intraspecific fights or to defend