Hayadan > Pachycephalosaurs

Pachycephalosaurs

The oldest dome-shaped dinosaur – Zavacephale rinpoche – was discovered from the Gobi Desert

Avi Blizovsky
October 7, 2025
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A nearly complete 108-million-year-old fossil pushes back the appearance of pachycephalosaurs by about 15 million years, illuminating the role of the dome as part of social behavior