User blog comment:Hyperborean/"The House of Hades" – official expectations blog/@comment-7153535-20130704185128/@comment-3146930-20130705095836

No, Atlas said that the person that rebuilt the skeleton thought it was a dinosaur, but in actuality the teeth came from a dragon. Atlas mentions that the teeth didn't come from just any dragon, but the Sybaris herself, so maybe the type of dragon results in variations to the Spartus.