Category:Class G

Geocrystalline
Class G, Geocrystalline planets are the third stage in the evolution of habitable worlds, having diameters of ten to fifteen thousand kilometers in diameter, ranging between three and four billion years old, and are within a star systems ecosphere. These worlds have surfaces that are covered in oceans and volcanoes, but are otherwise barren. The oceans are home to primitive lifeforms like algae and jellyfish. These planets have atmospheres composed mainly of Nitrogen, Oxygen, and Carbon Dioxide. These worlds evolve into Class H, K, L, M, N, O, or P worlds.