< Dichotomous Key
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1
- Spicule composition
- Calcium carbonate (calcite) - Calcarea
- Other - #2
| Animalia keys |
| Subkingdom |
|---|
| Agnotozoa |
| Phyla |
| Acoelomorpha | Cnidaria | Ctenophora | Myxozoa | Orthonectida | Placozoa | Porifera | Rhombozoa |
| Superphylum:Deuterostomia |
| Chaetognatha | Chordata | Echinodermata | Hemichordata |
| Superphylum:Ecdysozoa |
| Arthropoda | Kinorhyncha | Loricifera | Nematoda | Nematomorpha | Onychophora | Priapulida | Tardigrada |
| Superphylum:Lophotrochozoa |
| Annelida | Brachiopoda | Ectoprocta | Entoprocta | Mollusca | Nemertea | Phoronida | Sipuncula |
| Superphylum:Platyzoa |
| Acanthocephala | Cycliophora | Gastrotricha | Gnathostomulida | Micrognathozoa | Platyhelminthes | Rotifera |
2
- Spicule composition
- Silica - Hexactenellida
- Spongin fiber - Demospongiae
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