A herd of titanosaurs
The Titanosaurs is a family of sauropods that includes Alamosaurus. They are much taller then a T-rex and are perhaps the largest dinosaurs ever. They appear in Panic in the sky, Strangled and the Next extinction.
Panic in the sky[]
The herd of Titanosaurs in Mongolia (possibly Opisthocoelicaudia) are seen struggling to survive the acid rain. They later go extinct due to darkness and lack of plants. and died with their predator, Tarbosaurus.