From IDW Hasbro Wiki
After G.I. Joe broke from the U.S. government, they took control of the Nemesis as a stationary base, commanded by Shipwreck, who rechristened it Lemuria. The captured Baroness was held prisoner in a high security cell within Lemuria.
- The Decepticon ship Nemesis debuted in the original Transformers cartoon and comic, though it wasn't named until Beast Wars.
- Lemuria is named after the mythical sunken continent of the same name.