Mainly known from a single skull and a few extremely thick skull roofs (at 22 cm (8.7 in) thick), Pachycephalosaurus is estimated to have reached 4.5 m (15 ft) long and weighed 370–450 kg …

Dec 11, 2025 · The Smithsonian’s National Museum of Natural History has acquired a remarkably complete skull of Pachycephalosaurus, a dinosaur famed for its domed head that lived alongside …

Dec 21, 2025 · Pachycephalosaurus, genus of large and unusual dinosaurs found as fossils in deposits of North America dating to the Late Cretaceous Epoch (about 100 million to 65.5 million years ago).

Nov 21, 2022 · Pachycephalosaurus is an extinct, plant-eating dinosaur that lived about 76 million years ago. Its name, Pachycephalosaurus, which translates to the “thick-headed lizard,” best describes the …

Pachycephalosaurus was an unusual-looking dinosaur. It stood on two legs, had a beak for cropping plants and had a large bony dome on its head surrounded by spikes and bumps.

Oct 18, 2023 · Pachycephalosaurus is a unique dinosaur known for its dome-shaped skull. Learn about its origins, key facts, discovery, and contemporaries.

Pachycephalosaurus walked alongside Triceratops, Ankylosaurus, and Tyrannosaurus rex in what’s now western North America during the Cretaceous period, but all of these animals went extinct when...

Oct 10, 2025 · Today Pachycephalosaurus is the type genus of the Pachycephalosauridae,‭ ‬which means that all dinosaur genera similar in form to Pachycephalosaurus are referred to as …

Known for its distinctive dome-shaped skull, this herbivore lived in North America during the Late Cretaceous period. Reaching around 4.5 meters in length and weighing up to 500 kilograms, it …

Feb 25, 2025 · Pachycephalosaurus is one of the most fascinating dinosaurs from the Late Cretaceous period, known for its unique thick skull. This dinosaur, which means “thick-headed lizard,” roofed its …