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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

Polybranchiaspidiformes (21363451)

Children (3 direct children, 6 direct and indirect children):

Polybranchiaspididae (tree size 3)

Duyunolepididae

Pentathyraspididae