Crassusia

Crassusia are a phylum under Serpera and are distinguished by how incredibly overarchingly fat they are. They are so incredibly fat that even the smallest of them could crush a human with their body weight in under 10 seconds. The least heavy Crassusian is (uhh idk something little) weighing in at (probably like 2000 pounds or something) while the most heavy is (big thing), weighing an unimaginable (something like 70000000000 pounds). They contain a single genus, that being Fattus, and are all extremely fat variants of organisms on Earth. They are named after the Latin word for fat, crassus.

Classes under Crassusia:

Fattia