Hadrosaur

The hadrosaur was a genus of Earth dinosaur that lived in the Cretaceous Era. 
It was the most highly evolved cold-blooded organism to develop from the Eryops known to Humans, and was believed to have vanished when a mass extinction occurred at the end of the Cretaceous Era. 
It was discovered in the 24th century that a population of hadrosaur had survived the extinction event by living on an isolated continent, which was later destroyed by geological processes. Over the centuries, they evolved into a sentient space-faring species, the Voth, and departed Earth for the Delta Quadrant. ()
In 2399, Deanna Troi had kept her son Thad's toy hadrosaur. It was on a shelf next to some toy cars. ()
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de:Hadrosaurier
Category:Earth animals