Order Protremata Beecher 1891 Protrematida 



Order Telotremata Beecher 1891 Telotrematida 



Phylum Pterobranchia Lankester 1877 Pterobrancha 



Phylum Enteropneusta Gegenbaur 1870 Enteropneusta 



Class Balanoglossida Delle Chiaje 1820 Balanoglossea 



Phylum Linguatula Frolich 1789. . ., Linguatula 



Phylum Echinodermata Laske 1778 Echinodermata 



Subphylum Pelmatozoa Leuckart 1848 Pelmatozoa 



Class *Cystoidea von Buch 1844 *Cystoidea 



Order *Amphoridea Haeckel 1896 *Amphorida 



Order *Rhombifera Zittel 1879 *Rhombiferida 



Order *Diploporita Zittel 1879 *Diploporitida 



Order *Aporita Zittel 1879 * Aporitida 



Order *Edrioasteroida Billings 1858 *Edrioasterida 



Class *Blastoidea Say 1925 *Blastoidea 



Order *Protoblastoida Bather 1899 *Protoblastida 



Order *Eublastoida Bather 1899 *Eublastida 



Class Crinoidea Miller 1921 Crinoidea 



Order *Camerata Wachsmuth & Springer 1885 *Camerida 



Order *Adunata Bather 1899 *Adunida 



Order Flexibilia Zittel 1879 Flexibilida 



Suborder *Sagenocrinida Springer 1926 *Sagenocrinina 



Suborder Taxocrinida Springer 1926 Taxocrinina 



Order *Inadunata Wachsmuth & Springer 1885 *Inadunida 



Suborder *Larviformia Wachsmuth & Springer 1885 *Larvina 



Suborder *Fistulata Wachsmuth & Springer 1885 *Fistulina 



Order Articulata Miller 1821 Articulatida 



Suborder Bourgueticrinida H. L. Clark 1939 Bourgueticrinina 



Suborder Pentacrinida Claus 1868 Pentacrinina 



Suborder Holopida Haeckel 1896 Holopina 



Order Comatulida (Parks 1891) A. H. Clark 1908 Comatulida 



Suborder Oligophreata A. H. Clark 1908 Oligophreina 



Suborder Macrophreata A. H. Clark 1908 Macrophreina 



Subphylum Asterozoa Leuckart 1848 Asterozoa 



Class Asteroidea Burmeister 1837 Asteroidea 



Order Phanerozonea Sladen 1889 Phanerozonida 



Order Spinulosa Perrier 1894 Spinulosida 



Order Forcipulata Perrier 1894 Forcipulalida 



Class Ophiuroidea Norman 1865 Ophiuroidea 



Subclass *Aegophiurida Matsumoto 1915 *Aegophiuria 



Order *Lysophiurida Matsumoto 1913 *Lysophiurida 



Subclass Myophiurida Matsumoto 1915 Myophiuria 



Order *Ophiocystiida H. L. Clark 1939 *Ophiocystiida 



Order *Aganasterida lH. L. Clark 1939 *Aganasterida 



Order Phrynophiurida Matsumoto 1915 Phrynophiurida 



Order Laemophiurida Matsumoto 1915 Laemophiurida 



Order Gnathophiurida Matsumoto 1915 Gnathophiurida 



Order Chilophiurida Matsumoto 1915 Chilophiurida 



Subphylum Echinozoa Leuckart 1848 Echinozoa 



Class Echinoidea Bronn 1860 Echinoidea 



Order *Bothriocidaroida Duncan 1889 *Bothriocidaroida 



Order Cidaroida Duncan 1889 Cidaroida 



Order Centrechinoida Jackson 1912 Centrechinoida 



[10] 



