page_title: List of vertebrate fauna of the Maastrichtian stage
section_title: †Pachycephalosaurs
hierarchical_section_title: List of vertebrate fauna of the Maastrichtian stage / Dinosaurs / †Ornithischians / †Pachycephalosaurs
caption_attribution_description: English: Reconstruction of Pachycephalosaurus
context_page_description: This is an incomplete list that briefly describes vertebrates that were extant during the Maastrichtian, a stage of the Late Cretaceous Period which extended from 72.1 to 66 million years before present. This was the last time period in which non-avian dinosaurs, pterosaurs, plesiosaurs, and mosasaurs existed.
caption: Pachycephalosaurus
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