Troodon andrewsi Dinosaur: Troodon andrewsi Period Details Status: S > Heptasteornis andrewsi Author: Paul Year: 1988 Distribution Classification Sources References: Paul, (1988). Predatory Dinosaurs of the World. ________________________ 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