Purjephen

The purjephen split from testudohexapodia acta when they mutated to become lighter and filled with gas pouches. They usually became airborne when strong wind blew, but they didn't go far and would soon settle back down. When the ice comet hit, most of the testudohexapodia acta were kicked into the air, some times miles up. When the mutated testudohexapodia acta were exposed to the high altitudes, they were light enough to be suspended in the air and adapt. They are covered in a purple sail that was adapted for flight as well as photosynthesis. The useless sac-like organs were adapted into helium filled balloons. They get the helium from the waste produced by photosynthesis, H2.