Pang-bô͘:Taxonomy/Helcionelloida

Ancestral taxa
Domain:	Eukaryota  [Taxonomy; edit]
(無分級):	Unikonta  [Taxonomy; edit]
(無分級):	Opisthokonta  [Taxonomy; edit]
(無分級):	Holozoa  [Taxonomy; edit]
(無分級):	Filozoa  [Taxonomy; edit]
介:	Animalia  [Taxonomy; edit]
A介:	Eumetazoa  [Taxonomy; edit]
Clade:	Bilateria  [Taxonomy; edit]
Clade:	Nephrozoa  [Taxonomy; edit]
(無分級):	Protostomia  [Taxonomy; edit]
(無分級):	Spiralia  [Taxonomy; edit]
超門:	Lophotrochozoa  [Taxonomy; edit]
門:	Mollusca  [Taxonomy; edit]
(無分級):	incertae sedis  [Taxonomy; edit]
公:	†Helcionelloida  [Taxonomy; edit]

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Parent:	Incertae sedis/Molluscan class [Taxonomy; edit]
Rank:	classis (displays as 公)
Link:	†Helcionelloida
Extinct:	yes
Always displayed:	yes (major rank)
Taxonomic references:	–
Parent's taxonomic references:	–