Floatfilms

The floatfilms replaced their ancestors, the chlorocytuses, forming an entirely new genus. They have developed a very primitive tissue that serves a similar purpose to that of a air vesicles. This tissue helps to keep the floatfilm at or near the surface of the water, where it thrives. This has separated them from their ancestors, and created a new phenomenon on the surface of Sagan IV's oceans. During autumn, floatfilms experiences a huge bloom, and will cover the surface of the water. In many coastal areas, this can have the negative side-effect of killing many small marine organisms, and covering many beaches with it's decaying biomass. Despite the singular organisms being microscopic, in large groups, floatfilms can often coat entire regions. Notable species include t. auctor, the first floatfilm, t. tetelan, which uses its long flagellum to cling to rocks or other organisms, and t. vol, which grows in coastal waters.