Species
Dianulites apiculatus (Eichwald, 1829)
Synonymy list
1829     Orbitulites apiculatus n. — Eichwald , pp. 180, fig. 2,3
1860     Chaetetes apiculatus m. — Eichwald , pp. 479, fig. 28:1a-d
1861     Orbitulites apiculatus — Eichwald , pp. 113, fig. VII 1a-d
1877     Dianulites apiculatus Eichwald — Dybowski , pp. 32, fig. I 7,8
1911     Dianulites apiculatus (Eichwald) — Bassler , pp. 344, fig. 2:7,8, text fug. 219
Selection of related publications
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346.  Valgus. 
Männil, Ralf 1961. On the morphology of the hemisphaeric zoaria of Trepostomata (Bryozoa).  ENSV TA Geoloogia Instituudi Uurimused   VI,      113-140.
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Esthonioporata | 
| Family | Estonioporidae | 
| Subfamily | Dianulitinae | 
| Genus | Dianulites | 
| Species | apiculatus | 
| borealis | |
| colliferus | |
| collucatus | |
| detritus | |
| eichwaldi | |
| fastigiatus | |
| grandis | |
| haydenii | |
| helenae | |
| hexaporites | |
| janischewskyi | |
| lamanskyi | |
| maculatus | |
| magnicellularis | |
| modzalevskae | |
| multimesoporicus | |
| pakriensis | |
| petropolitanus | |
| sulcatus | 
References based on distribution
- Rõõmusoks, 1970a Aseri Stage
- Rõõmusoks, 1970a Pühajõe, Ida-Virumaa Aseri Stage
- Dybowski, 1877 Erra
- Dybowski, 1877 Pulkovo, Leningrad District
- Dybowski, 1877 Popovka River, Leningrad Oblast