This is a list of the Alien Species seen or mentioned in Earth: Final Conflict.
“The Taelons are an alien species from the Meruva Galaxy. They are descendants of the Atavus...Taelon
“The Atavus are an ancient humanoid species that lived on Earth some three million years before...Atavus (species)
“The Kimera were an evolutionary ancestor of the Taelons, and possibly the Jaridians as well...Kimera