When Karl asks what is in the egg he is told it is a Chasmosaur which is then referred to as Hadrosaur. A Chasmosaur is a Ceratopsian. When 26 hatches it is clearly a young Ceratopsian.
The "Closed"/"Open" sign of Cyrus Crabbs' shop and Skybax Trainees' uniforms are the only things spelled accurately in Dinotopia's Footprint Alphabet in the entire episode.