alamhõimkond
Eleutherozoa Bell, 1891
Valik taksonit käsitlevast teaduskirjandusest
Reich, M., Kutscher, M. 2014. A new ophiocistoid (Echinodermata) from the Silurian of Gotland, Sweden.  GFF   136,   1,   1-5. DOI:10.1080/11035897.2013.861863
Bockelie, J. F., Paul, C. R. C. 2007. Cyathotheca suecica and its bearing on the evolution of the Edrioasteroidea.  Lethaia   16,   4,   257-264. DOI:10.1111/j.1502-3931.1983.tb02006.x
Rõõmusoks, A. 1981. Ordovician and Silurian Strophomenida of Estonia, III. Genus Thaerodonta Wang.  Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология   30,   2,   61-71. DOI:10.3176/geol.1981.2.04
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346.  Valgus. 
Regnéll, G. 1948. Echinoderms (hydrophoridae, ophiocistia) from the Ordovician (Upper Skiddavian) of the Oslo region.  Norsk Geologisk Tidsskrift   27,      14-58.
Regnéll, G. 1945. Non-Crinoid Pelmatozoa from the Paleozoic of Sweden. A taxonomic study.  Meddelanden från Lunds Geologisk-Mineralogiska Institution   108,      1-255.  Carl Bloms Boktryckeri. 
Hecker, R. F. 1940. Nižnesilurijskie i devonskie iglokožie. Carpoidea, Eocrinoidea i Ophiocistia nižnego silura Leningradskoj oblasti i Èstonii.  Transactions of the Paleontological Institute (PIN)   9,   4,   5-82.
Hecker, R. F. 1939. Pyrgocystis iz nižnego silura Leningradskoj oblasti.  Izvestiya Akademii Nauk SSSR, Seriya Biologicheskaya         241-246.
Jaekel, O. 1899. Stammesgesihichte der Pelmatozoen. Erster Band. Thecoidea und Cystoidea. pp. 1-441.  Verlag von Julius Springer. 
Leitud liigid
1. Cyathocystis plautinae Schmidt, 1879 | Uhaku lade
3. Cyathotheca corallum Jaekel, 1918 | Kunda lade
4. Cyathotheca suecica Jaekel, 1927 | Katy lade
5. Linguaserra franzenae Reich et Kutscher, 2014 | Telychi lade
6. Pyrgocystis cylindrica Aurivillius, 1892 | Sheinwoodi lade
7. Pyrgocystis gracilis Hekker, 1939 | Volhovi lade
8. Pyrgocystis granulata Aurivillius, 1892 | Wenlock
9. Pyrgocystis procera Aurivillius, 1892 | Sheinwoodi lade
10. Pyrgocystis pulkovi Hekker, 1939 | Kunda lade
11. Pyrgocystis sulcata (Aurivillius, 1892) | Wenlock
12. Pyrgocystis varia (Aurivillius, 1892) | Wenlock
13. Pyrgocystis volborthi Hekker, 1939 | Volhovi lade
14. Stromatocystites balticus Jaekel, 1899 | Kambrium
16. Volchovia norvegica Regnéll, 1948 | Darriwili lade
17. Volchovia volborthi Hecker, 1938 | Kunda lade
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Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| hõimkond | Echinodermata | 
| alamhõimkond | Asterozoa | 
| Blastozoa | |
| Echinozoa | |
| Eleutherozoa | |
| klass | Edrioasteroidea | 
| Ophiocistoidea | |
| alamhõimkond | Pelmatozoa | 
| klass | Crinoidea | 
| Cyclocystoidea | |
| Homoiostelea | |
| Stylophora | 
 See also