1. Ontogeny and variation of the pachycephalosaurine dinosaur Sphaerotholus buchholtzae, and its systematics within the genus. Issue 2 (1st February 2021) Authors: Woodruff, D Cary; Goodwin, Mark B; Lyson, Tyler R; Evans, David C Journal: Zoological journal of the Linnean Society Issue: Volume 193:Issue 2(2021) Page Start: 563 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗