Subphylum
Pelmatozoa Leuckart, 1848
Selection of related publications
Rozhnov, S. V. 2013. A new Genus of Parablastoidea (Echinodermata) from the Middle Ordovician of Ladoga Glint on the Volkhov River (Ladoga Region). Paleontological Journal 47, 2, 154-161. DOI:10.1134/S003103011302010X
Rozhnov, S. V. 2012. Reinterpretation of Baltic Ordovician Heckerites multistellatus Rozhnov, 1987 as a possible paracrinoid based on new material. Zoosymposia 7, 307-316. DOI:10.11646/zoosymposia.7.1.28
Stukalina, G. A., Hints, L. 1989. On the morphology and systematics of Achradocystites (Paracrinoidea). Fossil and Recent Echinoderm researches, pp. 58-72. Academy of Sciences of the Estonian SSR Institute of Geology.
Stukalina, G. A. 1988. Studies in Paleozoic crinoid-columnals and -stems. Palaeontographica 204, 1-66.
Stukalina, G., Hints, L. 1987. Columnals of echinoderms with condylial articulation ( the Ordovician of the Baltic area). Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 36, 3, 104-112. DOI:10.3176/geol.1987.3.02
Stukalina, G. A. 1986. Zakonomernosti istoričeskogo razvitiâ krinoidej v rannem i srednem paleozoe SSSR. pp. 1-144. Nauka.
Stukalina, G., Hints, L. 1979. New finds of Echinoderms in the Upper Viruan deposits of North Estonia. Eesti NSV Teaduste Akadeemia Toimetised. Geoloogia / Известия Академии наук Эстонской ССР. Геология 28, 1, 1-10. DOI:10.3176/geol.1979.1.01
Hecker, R. F. 1958. New data on the genus Achradocystites (Echinodermata, Paracrinoidea). ENSV TA Geoloogia Instituudi Uurimused III, 145-163.
Schmidt, Fr. 1874. Über einige neue und wenig bekannte baltisch-silurische Petrefacten. Mémoires de l´Académie Impériale des Sciences de St.-Petersbourg 21, 11, 1-48.
Volborth, A. 1870. Über Achradocystites und Cystoblastus, zwei neue Crinoideen-Gattungen, eingeleitet durch kritische Betrachtungen über die Organe der Cystideen. Mémoires de l´Académie Impériale des Sciences de St.-Petersbourg 16, 2, 1-15.
List of species
1. Achradocystites grewingkii Volborth, 1870 | Oandu Stage
2. Achradocystites heckeri Stukalina et Hints, 1989 | Oandu Stage
4. Asperellacystis asperellus Stukalina et Hints, 1987 | Oandu Stage
5. Asperellacystis cincatus Hynda, 1986 | Ordovician
6. Asperellacystis plicatus Stukalina et Hints, 1987 | Oandu Stage
7. Blastocystis rossica Jaekel, 1918 | Kunda Stage
8. Flabellicystis kuusikuensis Stukalina, 1979 | Oandu Stage
10. Kosachenkoastrus volkhovensis Rozhnov, 2013 | Kunda Stage
11. Oanducystis excisus Stukalina, 1979 | Keila Stage
12. Oanducystis levis Stukalina, 1985 | Upper Ordovician
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Classification
| Organism group | Biota |
| Domain | Eukaryota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Asterozoa |
| Blastozoa | |
| Echinozoa | |
| Eleutherozoa | |
| Pelmatozoa | |
| Class | Cystoidea |
| Parablastoidea | |
| Paracrinoidea | |
| Crinoidea | |
| Cyclocystoidea | |
| Homoiostelea | |
| Stylophora |
See also