This is a category for races and civilisations that have become extinct.
“The Xon is the name given by the Centauri to the other sentient race that evolved in parallel to...Xon
“The Taratimude were a sentient race . They had great stiff wings that hung in folds from their...Taratimude
“Mongoose Publishing produced a sourcebook called "The Galactic Guide" written by Ian Harac that...Alacan