The PEDIGREE of
Ochre Sea Star

 
     aka Pisaster ochraceusi; aka Purple Sea Star; (as an important predator of mussels, this starfish is considered a keystone species in tidepools from Alaska to So. Calif.)

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/-- Superbranch Eumetazoa   +====> [ 71]
/-- Superphylum Planulozoa
/-- Clade of Bilateria and Placozoa
/   / (skip this generation?)
/-- Branch Bilateria
/-- Infrakingdom (Grade) of Coelomates
/   / or: prob. Clade Nephrozoa
/-- Superphylum Deuterostomia (Chordates, Echinoderms, & kin)
/-- Clade Ambulacraria
/-- Clade Coelomopora
/-- Phylum Echinodermata
/-- Subphylum Eleutherozoa
/-- Superclass Asterozoa
/-- Class Asteroidea (Starfish)
/-- Order Forcipulatida
/-- Family Asteriidae
/-- Genus Pisaster (some sea stars)
/  
- Ochre Sea Star
 

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