Classification
(master taxon) [(master rank)]Protoctista [kingdom]
Actinopoda [phylum]
Sarcodina [subphylum]
Acantharia [class]
Arthracanthida [order]
Sphaenacantha [suborder]
Subordo Sphaenacantha bevat de volgende taxa:
Acanthometridae [family]
Diploconidae [family]
Dorataspidae [family]
Hexalaspidae [family]
Lithopteridae [family]
Phractopeltidae [family]