Daemonosaurus size (IMAGE) Smithsonian Caption Daemonosaurus chauliodus, the new species of dinosaur discovered at Ghost Ranch, N.M. is estimated to have been similar in size to a large dog. Credit Smithsonian Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.