A ‘Terror of Tyrannosaurs’: The First Trackways of Tyrannosaurids and Evidence of Gregariousness and Pathology in Tyrannosauridae User Scientologist2a, in the Reddit Science subreddit, 25 Jul 2014
First track way from tyrannosaurids and evidence of gregarious behavior. User Illiterate_Scholar, in the Παλαιός / Palæos - The Story of Life subreddit, 23 Jul 2014