Homalozoa
| Homalozoa | |
|---|---|
| Cothurnocystis, Paleozoic era. | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Animalia | 
| Phylum: | Echinodermata | 
| Subphylum: | †Homalozoa Whitehouse, 1941 | 
| Groups included | |
| 
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Homalozoa is an obsolete extinct subphylum of Paleozoic era echinoderms, prehistoric marine invertebrates. They are also referred to as carpoids.