Ancestral taxa
Domain: Eukaryota  [Taxonomy; edit]
(bô-hun-kip): Unikonta  [Taxonomy; edit]
(bô-hun-kip): Opisthokonta  [Taxonomy; edit]
(bô-hun-kip): Holozoa  [Taxonomy; edit]
(bô-hun-kip): Filozoa  [Taxonomy; edit]
Kài: Animalia  [Taxonomy; edit]
A-kài: Eumetazoa  [Taxonomy; edit]
Clade: Bilateria  [Taxonomy; edit]
Clade: Nephrozoa  [Taxonomy; edit]
Chhiau-mn̂g: Deuterostomia  [Taxonomy; edit]
Mn̂g: Chordata  [Taxonomy; edit]
Clade: Craniata  [Taxonomy; edit]
A-mn̂g: Vertebrata  [Taxonomy; edit]
Infraphylum: Gnathostomata  [Taxonomy; edit]
Kong: Placodermi  [Taxonomy; edit]
Bo̍k: Arthrodira  [Taxonomy; edit]

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Parent: Placodermi [Taxonomy; edit]
Rank: ordo (displays as Bo̍k)
Link: Arthrodira
Extinct: true
Always displayed: yes (major rank)
Taxonomic references:
Parent's taxonomic references: http://palaeos.com/vertebrates/acanthodii/acanthodii.html#Eugnathostomata