Voth

The Voth were an ancient Saurian Delta Quadrant species in Star Trek. A significantly advanced species, the Voth were cold-blooded creatures, had a superior sense of smell, and skin pigmentation which altered according to moods.

Genetic evidence strongly suggested that the Voth originated on Earth. It was speculated by The Doctor that they evolved from the hadrosaur genus, which might have survived the mass extinction at the end of the Cretaceous 65 million years ago. The surviving dinosaurs continued to develop, likely on a secluded, or a destroyed landmass and became an interstellar species, possibly the first in the galaxy, when they left Earth. They had forty-seven genetic markers that were identical to Humans and many Terran creatures throughout Earth's history.

As a society many millions of years old, the Voth were technologically advanced, possessed transwarp capabilities, as well as an even more advanced space travel technology called spatial displacement, which functionally doubled as a highly advanced cloaking device as it moved their starships or even individuals slightly out of phase with the space-time continuum.