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Monophyletic taxon:
Phylum
Annelida
Lamarck, 1809
- segmented worms
(annelid)
Taxa
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Hierarchy
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Entity:
Trochozoa ([unranked]) - trochozoans
..Nemertea (Phylum) - ribbon worms
..Tetraneuralia (Clade)
..Annelida (Phylum) - segmented worms
....Aphanoneura (Class)
....Clitellata (Class)
....Echiura (Class)
....†Machaeridia (Class)
....Polychaeta (Class) - polychaetes
....Sipuncula (Class)
....†Vetustovermis (Genus)
Locations (geographical regions: 4)
Locations (ecological regions: 1)
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Last updated:
28 Aug 2026