Creosaurus trigonodon Dinosaur: Creosaurus trigonodon Period Details Status: S > Allosaurus trihedrodon Autor: Osborn Year: 1931 Classification Other References: Osborn, (1931). Cope: Master Naturalist. ________________________ If you are interested in Excel Professional version of Dinosaur or Pterosaur Database, write to us Facebook Twitter LinkedIn Tumblr VKontakte Odnoklassniki Pocket Skype Messenger Messenger WhatsApp Telegram Viber Line Share via Email