Torsada
The torsada were direct descendants of the aposolis. They were a slow swimmer that found it extremely difficult to live in rough currents.
The amount of fins on the torsada hindered the animal while it was aquatic, but quickly evolved into strong limbs to help with land travel. The torsada lived in rock pools and crawled from puddle to puddle when mating season came by, and they were the first draconic species to be able to survive in freshwater.
They are the ancestors of all eight-limbed dragons, with half of its descendants adapting for land and sky and the other half for water.