Kingdom Animalia Class Blastoidea | Phylum Echinodermata Rank Order | |
Similar Pentremites, Halysitidae, Juresania, Worthenia, Crinozoa | ||
Spiraculata is an order of Blastoids containing at least one genus. These blastoids are characterized by indirect entrance to the hydrospires through canals by way of pores.
References
Spiraculata Wikipedia(Text) CC BY-SA