- Class Chilopoda
- Subclass Epimorpha
- Order Scolopendromorpha
- Order Geophilomorpha
- Subclass Anamorpha
- Order Lithobiomorpha
- Order Craterostigmomorpha
- Order Scutigeromorpha
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- Class Diplopoda
- Subclass Penicillata
- Subclass Chilognatha
- Superorder Pentazonia
- Order Glomerida
- Order Glomeridesmida
- Order Sphaerotheriida
- Superorder Colobognatha
- Superorder Helminthomorpha
- Order Chordeumida
- Order Polydesmida
- Order Julida
- Order Spirobolida
- Order Spirosteptida
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| Phylum Bryozoa
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- Class Phylactolaemata
- Class Stenolaemata
- Class Gymnolaemata
- Order Ctenostomata
- Order Cheilostomata
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| Phylum Entoprocta
Phylum Priapulida
Phylum Tardigrada
Phylum Pentastomida
Phylum Phoronida
Phylum Brachiopoda
Phylum Chaetognatha |
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Phylum Hemichordata
- Class Enteropneusta
- Class Pterobranchia
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Phylum Chordata
- Subphylum Urochordata
- Class Ascidiacea
- Class Larvacea
- Class Thaliacea
- Subphylum Cephalochordata
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Phylum Echinodermata
- Subphylum Homalozoa
- Subphylum Crinozoa
- Class Crinoidea
- Subclass Articulata
- Order Isocrinida
- Order Millericrinida
- Order Crytocrinida
- Order Comatulida
- Subphylum Asterozoa
- Class Stelleroidea
- Subclass Asteroidea
- Order Platyasterida
- Order Paxillosida
- Order Valvatida
- Order Spinulosida
- Order Euclasterida
- Order Zorocallida
- Order Forcipulatida
- Subclass Ophiuroidea
- Order Oegophiurida
- Order Phynophiurida
- Order Ophiurida
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- Subphylum Echinozoa
- Class Echinoidea
- Subclass Perischoechinoidea
- Subclass Euechinoidea
- Superorder Diadematacea
- Order Echinothuriodida
- Order Diadematoida
- Order Pedinoida
- Superorder Echinacea
- Order Salenioida
- Order Phymosomatoida
- Order Arvacioida
- Order Temnopleuroida
- Order Echinoida
- Superorder Gnathostomata
- Order Holectypoida
- Order Clypeasteroida
- Superorder Atelostomata
- Order Cassiduloida
- Order Cassiduloida
- Order Holasteroida
- Order Spatangoida
- Order Neolampadoida
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- Class Hologhuroidea
- Subclass Dendrochirotacea
- Order Dendrochirotida
- Order Dactylochirotida
- Subclass Aspidochirotacea
- Order Aspidochirotida
- Order Elasipodida
- Subclass Apodacea
- Order Apodida
- Order Molpadiida
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Original content copyright 1995-2007 Robert B. Hole, Jr. All Rights Reserved