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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 (21363456)

Children (4 direct children, 26 direct and indirect children):

Polybranchiaspidiformes (tree size 6)

Huananaspidiformes (tree size 16)

Geraspididae

Zhaotongaspididae