the root (no rank)
Eukaryota (domain)
Metazoa (kingdom)
Chordata (phylum)
Urochordata (subphylum)
Ascidiacea (class)
Stolidobranchia (order)
Styelidae (family)
Styela (genus)
[hide inferior taxa]
Styela clava (species)
Styela montereyensis (species)
Styela plicata (species)