Ornithomimus antiquus Dinosaur: Ornithomimus antiquus Period Details Status: S > Coelosaurus antiquus Author: Baird & Horner Year: 1979 Distribution Classification Sources References: Baird & Horner, (1979). Cretaceous dinosaurs of North Carolina. ________________________ Please Support the Dinosaur Database: Facebook Twitter LinkedIn Tumblr VKontakte Odnoklassniki Pocket Skype Messenger Messenger WhatsApp Telegram Viber Line Share via Email