Its fossil remains mainly come from the Upper Shaximiao Formation in Sichuan Province (China)

Altura 131 mm

Length 348 mm

where it coexisted with other primitive mammals

Pachycephalosaurus skull juvenile Galliminus Its fossil remains mainly comeThe 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