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]
(bô-hun-kip): Protostomia  [Taxonomy; edit]
Chhiau-mn̂g: Ecdysozoa  [Taxonomy; edit]
(bô-hun-kip): Panarthropoda  [Taxonomy; edit]
Clade: Euarthropoda  [Taxonomy; edit]
Clade: Arachnomorpha  [Taxonomy; edit]
A-mn̂g: Chelicerata  [Taxonomy; edit]
Kong: Merostomata  [Taxonomy; edit]
Bo̍k: Eurypterida  [Taxonomy; edit]

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Parent: Merostomata [Taxonomy; edit]
Rank: ordo (displays as Bo̍k)
Link: Eurypterida
Extinct: true
Always displayed: yes (major rank)
Taxonomic references: http://www.ucmp.berkeley.edu/arthropoda/chelicerata/eurypteridsy.html
Parent's taxonomic references: