Genus
Irucrinus (col.) Stukalina, 1982
Aiheeseen liittyvät julkaisut
Yeltyscheva, R. S. (Yeltyschewa, R. S.) 1964. Stebli ordovikskih morskih lilij Pribaltiki (nižnij ordovik). Voprosy paleontologii IV, 59-82. Izdatel'stvo Leningradskogo Universiteta.
List of species
1. Irucrinus antiquus (Yeltyschewa, 1964) | Kunda Stage
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Luokittelu
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Echinodermata |
| Subphylum | Pelmatozoa |
| Class | Crinoidea |
| Organism group | Stemmed echinoderms outgroup (informal) |
| Order | Angulata (col.) |
| Family | Crenatocrininidae |
| Cyclomischidae | |
| Cyclopagodidae | |
| Genus | Acanthodocrinus |
| Constrictocrinus | |
| Cyclocyclicus | |
| Irucrinus (col.) | |
| Species | Irucrinus antiquus |
| Genus | Pentagonocyclicus |
| Rookuelacrinus | |
| Rugulosocrinus | |
| Trigonocyclicus | |
| Vialovicystis |