Monoclonius Skull
Dec. 26, 2024
File:Monoclonius crassus skull BYU2.jpg - Wikimedia Commons File:Monoclonius crassus skull BYU1.jpg - Wikimedia Commons Tom R. on Twitter: "Monoclonius skull described by Brown as "unusually perfect" c. 1914 #FossilFriday https://t.co/tO8xZrXObW" / Twitter Monoclonius Skull at BYU Natural History Museum | Ryan DeLuca | Flickr | Monoclonius Skull