Turtlie

Turtlies are any number of cosmological objects, vastly ranging in size from sub-universal to beyond the Omniverse, based on the famous saying, "it's turtles all the way down". They can a collection of lower-level Turtlies, being made of even smaller ones and so on, except if they are the lowest-level Turtlie, the Planet. Higher-level Turtlies are always made of the previous level, except if they are a Limit Ordinal (Verse in the Infinite Cosmology) or are a Planet.

There is also a measurement system used by many civilizations within The Infinite Cosmology that starts with T-0 (Planet), T-1 (Star System), etc. This is a set of values corresponding with their objects:

Turtlie Tier	Standard Naming
T-0	Planet
T-1	Star System
T-2	Galaxy
T-3	Galaxy Cluster
T-4	Supercluster
T-5	Galaxy Filament
T-6	Supergalaxy
T-7	Supergalaxy Cluster
T-8 ...	...
T-ω	Universe / Erkesik