Phytococcus sp. This genus of photosynthetic prokaryotes is of the same family that emerged in the Aetherian Eon and has survived for the past two billion years. It is Phytococcus, or similar prokaryote, that is absorbed into the eukaryotic cell and genome and becomes chloroplasts. They take the form of planktonic cells, drifting near the ocean's surface where they reside. Species include P. aureus, P. dirki and P. protoplastus, but without techniques such as genetic sequencing and electrophoresis they are all but impossible to differentiate.

Part of the Icarus Project. I felt that since we currently have only a few eukaryotic organisms so far, the Promethian biosphere is lacking somewhat. We began with nucleated cells, but bacteria and other prokaryotes are an important part of the ecosystem, so I made these photosynthetic organisms to be one of the producing species.

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