Primiostracidae

Primiostracidae includes the Shelled Urchips on Sagan 4.

Domain: Eukaryota
 * Kingdom: Mancerxa
 * Phylum: Konydonta
 * Class: Coelocombibodonta
 * Order: Echinodermima
 * Family: Primiostracidae
 * Uksip shellus