Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordates)
Olfactores
Tunicata (Tunicate)
Thaliacea
Pyrosomatida
Pyrosomatidae
Children (2 direct children, 2 direct and indirect children):
Pyrostremma agassizi
Pyrostremma spinosum