Family
Coelosphaeridiaceae Spjeldnaes et Nitecki, 1990
Selection of related publications
Spjeldnaes, N. 1955. Coelosphaeridium (Chlorophyta Dasycladaceae) from the Caradocian beds of N. Wales.  Norsk Geologisk Tidsskrift   35,      151-153.
Bekker, H. 1924. Mõned uued andmed Kukruse lademe stratigraafiast ja faunast.  Tartu Ülikooli Geoloogia Instituudi Toimetused   1,      1-20.
Stolley, E. 1898. Neue Siphoneen aus baltischen Silur.  Archiv für Antropologie und Geologie Schleswig-Holsteins und der benachbarten Gebiete   3,   1,   40-67.
List of species
1. Coelosphaeridium conwentzianum Kiesow, 1893 | Kukruse Stage
2. Coelosphaeridium cyclocrinophilum Roemer, 1883 | Ordovician
4. Coelosphaeridium kohtlaensis Bekker, 1924 | Kukruse Stage
5. Coelosphaeridium sphaericum (Kjerulf, 1865) | Ordovician
6. Coelosphaeridium wesenbergense Stolley, 1898 | Katian
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Classification
| Organism group | Biota | 
| Kingdom | Plantae | 
| Organism group | Algae (informal) | 
| Phylum | Chlorophyta | 
| Subphylum | Siphonales | 
| Class | Receptaculitaphyceae | 
| Order | Cyclocrinales | 
| Family | Apidiacea | 
| Coelosphaeridiaceae | |
| Genus | Coelosphaeridium | 
| Family | Cyclocrinacea |