Subphylum

Eleutherozoa Bell, 1891

Selection of related publications

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

Franzén, C. 1979. Echinoderms. Sveriges Geologiska Undersökning 73, 3, 216-224.

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.

List of species

1. Cyathocystis plautinae Schmidt, 1879 | Uhaku Stage

2. Cyathocystis rhizopora Schmidt, 1880 | Keila Stage→Oandu Stage

3. Cyathotheca corallum Jaekel, 1918 | Kunda Stage

4. Cyathotheca suecica Jaekel, 1927 | Katian

5. Linguaserra franzenae Reich et Kutscher, 2014 | Telychian

6. Pyrgocystis cylindrica Aurivillius, 1892 | Sheinwoodian

7. Pyrgocystis gracilis Hekker, 1939 | Volkhov Stage

8. Pyrgocystis granulata Aurivillius, 1892 | Wenlock

9. Pyrgocystis procera Aurivillius, 1892 | Sheinwoodian

10. Pyrgocystis pulkovi Hekker, 1939 | Kunda Stage

11. Pyrgocystis sulcata (Aurivillius, 1892) | Wenlock

12. Pyrgocystis varia (Aurivillius, 1892) | Wenlock

13. Pyrgocystis volborthi Hekker, 1939 | Volkhov Stage

14. Stromatocystites balticus Jaekel, 1899 | Cambrian

15. Volchovia mobilis Hecker, 1938 | Volkhov Stage→Kunda Stage

16. Volchovia norvegica Regnéll, 1948 | Darriwilian

17. Volchovia volborthi Hecker, 1938 | Kunda Stage

Classification

Organism group	Biota
Kingdom	Animalia
Phylum	Echinodermata
Subphylum	Asterozoa
	Blastozoa
	Echinozoa
	Eleutherozoa
Class	Edrioasteroidea
	Ophiocistoidea
Subphylum	Pelmatozoa
Class	Cyclocystoidea
	Homoiostelea
	Stylophora