the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Echinodermata (phylum)
Asterozoa (class)
Asteroidea (infraclass)
Forcipulata (order)
Asteriidae (family)
Pisaster (genus)
[hide inferior taxa]
Pisaster brevispinus (species)
Pisaster ochraceus (species)