Styracosaurus sphenocerus Dinosaur: Styracosaurus sphenocerus Period Details Status: S > Monoclonius sphenocerus Author: (Cope) Year: (1889) Distribution Classification Sources References: Tracy Ford- Paleofile. ________________________ Please Support the Dinosaur Database: Facebook Twitter LinkedIn Tumblr VKontakte Odnoklassniki Pocket Skype Messenger Messenger WhatsApp Telegram Viber Line Share via Email
