Family
Apycnodiscidae Boczarowski, 2001
Aiheeseen liittyvät julkaisut
Reich, M. Kutscher, M. 2010. Cyclocystoids (Echinodermata: Echinozoa) from silurian of gotland, Sweden. Proceedings of the 12th International Echinoderm Conference, Durham, New Hampshire, USA, 7-11 August 2006, pp. 67-70. Taylor & Francis.
Männil, Ralf 1987. Ordovician cyclocystoids of Baltic. Problems of phylogenese and taxonomy of echinoderms. Abstracts, pp. 71-72. Eesti NSV Teaduste Akadeemia.
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.
List of species
1. Apycnodiscus insularis (Regnéll, 1945) | Wenlock
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Class | Cyclocystoidea |
| Family | Apycnodiscidae |
| Genus | Actinodiscus |
| Apycnodiscus | |
| Sievertsia | |
| Zygocycloides | |
| Family | Cyclocystoididae |