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]
Clade: Eugnathostomata  [Taxonomy; edit]
Clade: Teleostomi  [Taxonomy; edit]
Superclass: Tetrapoda  [Taxonomy; edit]
Clade: Reptiliomorpha  [Taxonomy; edit]
Clade: Amniota  [Taxonomy; edit]
..... .....
Clade: Avialae  [Taxonomy; edit]
Clade: Euavialae  [Taxonomy; edit]
Clade: Avebrevicauda  [Taxonomy; edit]
Clade: Pygostylia  [Taxonomy; edit]
Clade: Ornithothoraces  [Taxonomy; edit]
Clade: Euornithes  [Taxonomy; edit]
Clade: Ornithuromorpha  [Taxonomy; edit]
Clade: Ornithurae  [Taxonomy; edit]
Kong: Aves  [Taxonomy; edit]
Infraclass: Neognathae  [Taxonomy; edit]
Chhiau-bo̍k: Galloanserae  [Taxonomy; edit]
Bo̍k: Anseriformes  [Taxonomy; edit]
Kho: Gastornithidae  [Taxonomy; edit]
Sio̍k: Gastornis  [Taxonomy; edit]

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Parent: Gastornithidae [Taxonomy; edit]
Rank: Genus (displays as Sio̍k)
Link: Gastornis
Extinct: yes
Always displayed: yes (major rank)
Taxonomic references:
Parent's taxonomic references: