| Phylum | PHORONIDA (horseshoe worms) |
| Superphylum | LOPHOTROCHOZOA (molluscs and relatives) |
| Clade | Bilateria (bilaterally symmetrical animals) |
| Subkingdom | EUMETAZOA (metazoans) |
| Kingdom | ANIMALIA (animals) |
| Domain | Eukaryota (eukaryotes) |
| Life | BIOTA (living things) |
NBN (data.nbn.org.uk)
has a distribution map for PHORONIDA (horseshoe worms)
|
PHORONIDA (horseshoe worms) may also be included in identification literature listed under the following higher taxa:
| Author | Year | Title | Source |
|---|---|---|---|
| Harrison F.W. & Woollacott R.M. (eds) | 1997 | Microscopic anatomy of invertebrates - 13 : Lophophorates, Entoprocta, and Cycliophora | Vol 13, Wiley |
Literature listed under the following higher taxa may also be relevant to PHORONIDA (horseshoe worms):
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