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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)
Gnathostomata (Gnathostome)

Acanthodii (130955)

Children (14 direct children, 122 direct and indirect children):

Climatiiformes (tree size 18)

Ischnacanthiformes (tree size 50)

Acanthodiformes (tree size 9)

Cheiracanthus (tree size 3)

Mesacanthus

Ptomacanthus

Climatiida (tree size 16)

Diplacanthiformes (tree size 8)
Diplacanthida

Gomphacanthus

Brochoadmonoidei (tree size 3)

Granulacanthus (tree size 1)

Euthacanthidae

Ischnacanthida

Acanthodida