Dinosaur

Type: Dinosauria

Galactic Age: 1st Generation
Sentience Class: Animalia

Lifespan Duration: Unknown
Skin/Feather Color(s): Varies
Breathing Mixture: Oxygen / Nitrogen

Original Homeworld: Earth

Dinosaurs were the dominant vertebrate animals of terrestrial ecosystems for over 160 million years, from the late Triassic period (about 230 million years ago) until the end of the Cretaceous period (65 million years ago), when most of them became extinct in the Cretaceous–Tertiary extinction event. The 10,000 living species of birds have been classified as dinosaurs.

Dinosaurs diverged from their archosaur ancestors approximately 230 million years ago during the Middle to Late Triassic period, roughly 20 million years after the Permian-Triassic extinction event wiped out an estimated 95% of all life on Earth.