Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Nephrozoa (Eubilateria)
Protostome (Protostomia)
Spiralia (Spiralians)
Lophotrochozoa
Sipuncula (Sipunculid worms)
Phascolosomatidea
Phascolosomatida
Phascolosomatidae
Phascolosoma
Phascolosoma agassizii (2241957)
Children (1 direct children, 1 direct and indirect children):
Phascolosoma agassizii agassizii