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Classification of Deuterostomia (excluding Chordata) Phylum Classification
Takashi Nakada
15 June 2011
Branch Phylum Class Order
Deuterostomia Xenacoelomorpha Xenoturbellida Xenoturbellida
Acoelomorpha Acoela
Nemertodermatida
Hemichordata Enteropneusta Helminthomorpha
Pterobranchia Rhabdopleurida
Cephalodiscida
Planctosphaeroidea Planctosphaerida
Echinodermata Crinoidea Millericrinida
Cyrtocrinida
Bouragueticrinida
Isocrinida
Comatulida
Asteroidea Paxillosida
Notomyotida
Valvatida
Eugnathida
Spinulosida
Forcipulatida
Brisingida
Peripodida
Ophiuroidea Ophiomyxina
Myophiurida
Echinoidea Cidaroida
Echinothurioida
Diadematoida
Arbacioida
Echinoida
Clypeasteroida
Cassiduloida
Spatangoida
Holothuroidea Dendrochirotida
Dactylochirotida
Aspidochirotida
Elapsipodida
Molpadida
Apodida
Chordata

References

Barnes, R. S. K., Calow, P., Olive, P. J. W., Golding, D. W. & Spicer, J. I. The Invertebrates: A Synthesis, 3rd Edn. (Blackwell, Oxford, 2001).