Aoi is a water/sky based child form Spectrobe that evolves into Aoba and then into Aobasar. Aoi can be excavated as an Aopod in its fossilized state.
Aoi (child/first) is a bird-like Spectrobe with amazing search capabilities.
Aoba (adult/second) is a bird-like Spectrobe that has two brightly-colored wings. It has a large red feather on the top of its head and a long colorful tail on its back.
Aobasar (evolved/third)is a bird-like Spectrobe that has a long tail with bright orange feathers on its tip. Aobasar has a white face with red markings.