Astrum Fauna, aka 'Star lifeform' is a type/classifications and catch all term of living being that inhabit the void or vastness of universe itself and not originate from a planet. Most if not all of them are older than 'cycle 3'. While it's almost impossible to make evolutionary tree for them, but it's not impossible. as some older life form and civilization have attempt to record them before perish.

Classify by the type of diet

• Nebulaefeeder Life form that consume star dust and others microcosmos organism
• Corenivore - Life form that eat a planet, specifically the planet's core. Also known as Life eater, World devourer
• Vigorvore - Life form that eat 'energy' or 'concept' such as mental energy, dream, emotions and other kind of 'non-material energy'