Taxonavigation
Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta 
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Phylum: Chaetognatha
Classis: Sagittoidea
Ordo: Phragmophora
Familiae (4): 
Bathyspadellidae - 
Eukrohniidae - 
Heterokrohniidae -
Krohnittellidae - 
Spadellidae
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