Dinosaurs A to Z
Pachycephalosauridae

Platytholus clemensi

"flattened"

Generic pachycephalosaur body-plan outline
You 1.8 m (5.9 ft) tall
Platytholus 5 m (16.4 ft) long
as long as 3 people standing fingertip to fingertip
generic pachycephalosaur body plan, scaled to length — not a silhouette of Platytholus
Length
5 m (16.4 ft)
Period
Late Cretaceous (100–66 Mya)
Place
United States · Montana, USA
Food
Herbivore
Clade
Pachycephalosauridae Dinosauria Ornithischia Cerapoda Marginocephalia Dome-headed bipedal herbivores.

Platytholus is an extinct genus of pachycephalosaurid dinosaur from the Late Cretaceous (Maastrichtian) Hell Creek Formation of the United States. The genus contains a single species, P. clemensi, known from a partial skull.

What we know

  • Named by Horner, Goodwin & Evans, 2023.
  • Fossils found in United States and Montana, USA.

What we guess

The reconstruction notes for Platytholus — soft tissue, color, behavior — haven't been written up yet. Only the recorded basics above are filled in so far.