CerapodaDinosauriaGenasauriaLate CretaceousMarginocephaliaNeornithischiaNorth AmericaOrnithischiaPachycephalosauriaPachycephalosauridaePachycephalosaurinae

Sphaerotholus edmontonensis

Dinosaur: Sphaerotholus edmontonensis

Type: Pachycephalosauria

Length*: 1.45 m 4.8 ft
Weight*: 16 kg 35 lb
*The largest known specimen

ESR: 2 / 4 (estimated size reliability)


Material: 3 frontoparietal dome.
References: D. Cary Woodruff, Mark B. Goodwin, Tyler R. Lyson & David C. Evans (2021). Ontogeny and variation of the pachycephalosaurine dinosaur Sphaerotholus buchholtzae, and its systematics within the genus.


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