Species
Ptilodictya nitidula Billings, 1886
Synonymy list
1866     Ptilodictya nitidula — Billings , pp. 9
1889     Dicranopora nitidula (Billings) — Miller , pp. 300
1900     Dicranopora nitidula (Billings) — Nickles & Bassler , pp. 233
1928     Dicranopora nitidula (Billings) — Bassler , pp. 165
1961     Ptilodictya nitidula Billinga — Ross , pp. 336, fig. 43:6
1984     Ptilodichtya nitidula Billings, 1886 — Spjeldnaes , pp. 30, fig. 4:7; texy fig 6 H,K
1993     Ptilodichtya nitidula Billings, 1886 — Gorjunova & Lavretjeva , pp. 65
Selection of related publications
Spjeldnaes, N. 1984. Upper Ordovician Bryozoans from Ojl Myr, Gotland, Sweden.  Bulletin of the Geological Institutions of the University of Uppsala   10,      1-66.
Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Bryozoa | 
| Class | Stenolaemata | 
| Superorder | Palaeostomata | 
| Order | Cryptostomata | 
| Suborder | Ptilodictyina | 
| Family | Ptilodictyidae | 
| Subfamily | Ptilodictyinae | 
| Genus | Ptilodictya | 
| Species | capillaris | 
| exilis | |
| gladiola | |
| halli | |
| irregularis | |
| lanceolata | |
| nitidula | |
| procera | |
| scalpellum | |
| sulcata | |
| triangularis | 
References based on distribution
- Spjeldnaes, 1984a Öjle Myr, Gotland Hirnantian