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]
(bô-hun-kip): Spiralia  [Taxonomy; edit]
Chhiau-mn̂g: Lophotrochozoa  [Taxonomy; edit]
Mn̂g: Mollusca  [Taxonomy; edit]
Kong: Cephalopoda  [Taxonomy; edit]
A-kong: Ammonoidea  [Taxonomy; edit]
Bo̍k: Ammonitida  [Taxonomy; edit]
A-bo̍k: Ammonitina  [Taxonomy; edit]
Chhiau-kho: Eoderocerataceae  [Taxonomy; edit]
Kho: Dactylioceratidae  [Taxonomy; edit]
Sio̍k: Tokurites  [Taxonomy; edit]

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Parent: Dactylioceratidae [Taxonomy; edit]
Rank: genus (displays as Sio̍k)
Link: Tokurites
Extinct: yes
Always displayed: yes (major rank)
Taxonomic references: Repin Yu.S. Ammonitovaya shkala nizhney yury Severo-Vostoka Azii [Lower Jurassic ammonite geologic time scale of Northeast Asia]. Neftegazovaya Geologiya. Teoriya I Praktika, 2016, vol. 11, no. 4, available at: http://www.ngtp.ru/rub/2/47_2016.pdf
Parent's taxonomic references: M. K. Howarth 2013. Treatise on Invertebrate Paleontology, Part L, Revised, Volume 3B, Chapter 4: Psiloceratoidea, Eoderoceratoidea, Hildoceratoidea.