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]
Stem group: Cephalopoda (?)  [Taxonomy; edit]
Kho: Nectocarididae  [Taxonomy; edit]
Sio̍k: Petalilium  [Taxonomy; edit]

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Parent: Nectocarididae [Taxonomy; edit]
Rank: genus (displays as Sio̍k)
Link: Petalilium
Extinct: yes
Always displayed: yes (major rank)
Taxonomic references: Smith, M. R.; Caron, J. B. (2010). "Primitive soft-bodied cephalopods from the Cambrian". Nature. 465 (7297): 469–472. Bibcode:2010Natur.465..469S. doi:10.1038/nature09068. PMID 20505727. 
Parent's taxonomic references: Smith, M. R.; Caron, J. B. (2010). "Primitive soft-bodied cephalopods from the Cambrian". Nature. 465 (7297): 469–472. Bibcode:2010Natur.465..469S. doi:10.1038/nature09068. PMID 20505727.