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Eumetazoa (metazoans)- 
    
Bilateria (bilaterally symmetrical animals)- 
    
Deuterostomia (deuterostomes)- 
    
Echinodermata (sea stars, sea urchins, sea cucumbers, and relatives)- 
    
Class Asteroidea- 
    
Order Notomyotida- 
    
Family Benthopectinidae- 
    
Genus Pectinaster- 
        
Species Pectinaster agassizi
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Species Pectinaster gracilis
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Species Pectinaster mixtus
 
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