Morass Minor is a planet owned by the mammoths and is where they hold the Mammoth Space-Car Races every year, which were owned by Grandum. Because Grandum already had built on most of the land there, he decided to develop Squawk Major, too. To do this, he disguised himself as a pterosaur and sabotaged the Trials. Teggs and his crew defeated Grandum and the mammoths and sent him to prison.