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: | Mollusca | [Taxonomy; edit] | |
| Subphylum: | Conchifera | [Taxonomy; edit] | |
| Class: | Cephalopoda | [Taxonomy; edit] | |
| Subclass: | Nautiloidea | [Taxonomy; edit] | |
| Superorder: | †Plectronoceratoidea | [Taxonomy; edit] | |
| Order: | †Protactinocerida | [Taxonomy; edit] | |
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| Parent: | Plectronoceratoidea [Taxonomy; edit]
|
| Rank: | ordo (displays as Order)
|
| Link: | †Protactinocerida
|
| Extinct: | yes
|
| Always displayed: | yes (major rank) |
| Taxonomic references: | – |
| Parent's taxonomic references: | Not "ceratoidea", per Clarke, M.R. (1985), "Main features of cephalopod evolution", in Wilbur, Karl M.; Clarke, M.R.; Trueman, E.R. (eds.), The Mollusca, vol. 12. Paleontology and neontology of Cephalopods, New York: Academic Press, ISBN 0-12-728702-7 |