Hadrosaur

A hadrosaur was a type of dinosaur indigenous to the planet Earth millions of years ago during the Cretaceous period. They were characterised by their head crests and duck-bills.

The spacefaring Voth of the Delta Quadrant were thought to have from hadrosaurs. 

In the far future, around the year 21,436,000, the Collectors kept a group hadrosaurs in their preserve along with other dinosaurs. Federation Department of Temporal Investigations special agents, Gariff Lucsly and Marion Dulmur, along with Jena Noi, witnessed a Borg Tyrannosaurus rex pursuing a herd of them.