Biota (Life)
    
        Eukaryote (Eukarya)
    
        Podiata
    
        Unikont (Unikonta)
    
        Opisthokont (Opisthokonta)
    
        Holozoa
    
        Filozoa
    
        Apoikozoa (Choanozoa)
    
        Animal (Animalia)
    
        Metazoa
    
        Epitheliozoa
    
        Eumetazoa
    
        Bilateria
    
        Nephrozoa (Eubilateria)
    
        Protostome (Protostomia)
    
        Chaetognatha (Arrow worms)
    
        Sagittoidea
    
        Aphragmophora
    
        Sagittidae
    
    Oligoradiata (3694156)
    
    
    
        
        Children (2 direct children, 2 direct and indirect children):
        
        
        
            
                Oligoradiata entis
                
                
                
            
                Oligoradiata pellucida