Dracorex

Filed under Cretaceous dinosaurs · Types of Dinosaurs editorial team

Order: Ornithischia · Suborder: Marginocephalia · Infraorder: Pachycephalosauria · Family: Pachycephalosauridae (family not firmly confirmed)

Dracorex, whose name means "dragon king," was a pachycephalosaur that roamed the Late Cretaceous landscape of what is now South Dakota. This plant-eating dinosaur measured approximately 10 feet in length, making it a relatively modest member of its family. What distinguished Dracorex most dramatically was its skull, which departed significantly from the typical bone-headed appearance of many pachycephalosaurs. Rather than displaying the characteristic dome, its skull was notably flat and elaborately adorned with spikes and bumps that gave it a striking, dragon-like appearance.

Known from a single skull specimen, Dracorex represents one of the more ornate examples of pachycephalosaur anatomy. Among paleontologists, the dinosaur's taxonomic status remains a subject of ongoing discussion. Some researchers have proposed that Dracorex may represent a younger growth stage of the larger pachycephalosaur Pachycephalosaurus rather than a distinct species. Regardless of how this classification question ultimately resolves, Dracorex exemplifies the remarkable diversity of skull structure found within the pachycephalosaur family, a group of herbivorous dinosaurs known for their elaborately modified cranial features.

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Reference background: Natural History Museum, London — Dinosaurs; Smithsonian National Museum of Natural History — Dinosaurs; American Museum of Natural History — Dinosaurs & Fossils. Figures are typical published ranges; taxonomy follows the source era and modern consensus is noted where it differs. See our sources & fact-check policy.

Related dinosaurs

Other dinosaurs from the Pachycephalosauridae family.