Biota (Life)
Eukaryote (Eukarya)
Podiata
Unikont (Unikonta)
Opisthokont (Opisthokonta)
Holozoa
Filozoa
Apoikozoa (Choanozoa)
Animal (Animalia)
Metazoa
Epitheliozoa
Eumetazoa
Bilateria
Deuterostome (Deuterostomia)
Chordata (Chordates)
Olfactores
Craniata (Craniata (chordata))
Vertebrata (Animals with backbone)
Galeaspida
Polybranchiaspidida
Polybranchiaspidiformes
Polybranchiaspididae
Children (2 direct children, 2 direct and indirect children):
Siyingia altuspinosa
Siyingia perlatuspinosa