Bold ranks show taxa that will be shown in taxoboxes
because rank is principal or always_display=yes.

Ancestral taxa
Domain: Eukaryota /displayed  [Taxonomy; edit]
Clade: Amorphea  [Taxonomy; edit]
Clade: Obazoa  [Taxonomy; edit]
(unranked): Opisthokonta  [Taxonomy; edit]
(unranked): Holozoa  [Taxonomy; edit]
(unranked): Filozoa  [Taxonomy; edit]
Clade: Choanozoa  [Taxonomy; edit]
Kingdom: Animalia  [Taxonomy; edit]
Subkingdom: Eumetazoa  [Taxonomy; edit]
Clade: ParaHoxozoa  [Taxonomy; edit]
Clade: Bilateria  [Taxonomy; edit]
Clade: Nephrozoa  [Taxonomy; edit]
(unranked): Protostomia  [Taxonomy; edit]
(unranked): Spiralia  [Taxonomy; edit]
Superphylum: Lophotrochozoa  [Taxonomy; edit]
Phylum: Annelida  [Taxonomy; edit]
Class: Sipuncula  [Taxonomy; edit]


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Parent: Annelida [Taxonomy; edit]
Rank: classis (displays as Class)
Link: Sipuncula
Extinct: no
Always displayed: yes (major rank)
Taxonomic references: Shen, X.; Ma, X.; Ren, J.; Zhao, F. (2009). "A close phylogenetic relationship between Sipuncula and Annelida evidenced from the complete mitochondrial genome sequence of Phascolosoma esculenta". BMC Genomics. 10: 136. doi:10.1186/1471-2164-10-136. PMC 2667193. PMID 19327168.
Parent's taxonomic references: