Asterzoa

Asterzoa is a diverse superphylum of carpotestan fauna. Ancestrally resembling a starfish with only four arms, they have branched into a variety of forms, including active bilateral predators, sessile cnidarian-like filter feeders, and leaf-like photosynthesizers. They have notably modified the "bait" feature ancestral to carpotestans for a great variety of different uses, including filter-feeding, sensory purposes, and even locomotion.

Asterzalia (Phylum)
Active asterzoa capable of swimming.

Asterstreidia (Phylum)
Sessile, filter-feeding asterzoa.

Asterfolia (Phylum)
Superficially leaf-like asterzoa with cell walls which are capable of photosynthesis.