Child taxons:
| Phylum Annelida |     |
| Phylum Arthropoda → Subphylum Crustacea → Superclass Multicrustacea |     |
| Phylum Brachiopoda |   |
| Phylum Bryozoa |     |
| Phylum Chaetognatha → Class Sagittoidea → Order Aphragmophora → Family Sagittidae |  |
| Phylum Chordata |     |
| Phylum Cnidaria |     |
| Phylum Ctenophora |     |
| Phylum Echinodermata |     |
| Phylum Hemichordata → Class Enteropneusta |  |
| Phylum Mollusca |     |
| Phylum Nemertea |     |
| Phylum Phoronida → Family Phoronidae |     |
| Phylum Platyhelminthes → Subphylum Rhabditophora |     |
| Phylum Porifera |     |
| Phylum Xenacoelomorpha → Subphylum Acoelomorpha → Order Acoela → Suborder Bursalia → Infraorder Crucimusculata → Superfamily Aberrantospermata → Family Convolutidae → Genus Waminoa |  |