Isisians were an extinct humanoid species native to the planet Isis III.
History and specifics[]
Isisians were monocular with orange/brown skin. They did not wear clothing.
Many millions of years ago, the entity Isis triggered the evolution of Isisians and guided them into an advanced culture. During their time on the planet, they worshipped the entity while building large cities, developing such technology as telepathically-projected history tapes and invisible antigravity transport tubes. They also built a pyramid-shaped temple to Isis.
25,000,000 years ago, their civilization began to die out when the entity had to leave them. They retreated underground and built one last city.
In 2267, while exploring Isis III, James T. Kirk and Spock discovered the ancient city and reviewed their historical records. (TOS comic: "Death of a Star")