Species
Collarothyris canaliculata (Wenjukow, 1899)
Synonymy list
1885     Meristella didyma — Tsernyshew , pp. 33, fig. pl. 4:59-61
1898     Whitfieldella didyma — Tsernyshew et Jakovlev , pp. 354, fig. pl. 2: 9-14, pl. 3: 1-19
1899     Meristella canaliculata sp. nov. — Wenjukow , pp. 143, fig. pl. 7: 21
1906     Meristella canaliculata Wenjukow, 1899 — Siemiradzk , pp. 179, fig. pl. 6: 24-26
1929     Protathyris didyma — Kozlowski , pp. 227, fig. pl. 12: 28-40
1954     Protathyris didyma (pars) — Nikoforova , pp. 159, fig. pl. 18: 5
1967     Didymothyris? canaliculata (Wenjukow, 1899) — Rubel et Modzalevskaya , pp. 245-246, fig. pl. 4: 1-18; text-figs 4, 5
1970     Collarothyris canaliculata (Wenjukow, 1899) — Modzalevskaya , pp. 156
1984     Collarothyris canaliculata (Wenjukow, 1899) — Rubel et al. , pp. 28
1985     Collarothyris canaliculata canaliulata (Wenjukow, 1899) — Modzalevskaya , pp. 77-78, fig. pl. 16: 18-19
Selection of related publications
Modzalevskaya, T. L. 1985. Brahiopody silura i rannego devona Evropejskoj časti SSSR. Otrâd Athyridida. pp. 1-128.  Nauka. 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Rhynchonellata | 
| Order | Athyridida | 
| Suborder | Athyrididina | 
| Superfamily | Athyridoidea | 
| Family | Athyrididae | 
| Subfamily | Didymothyridinae | 
| Genus | Collarothyris | 
| Species | canaliculata | 
| collaris | 
References based on distribution
- Modzalevskaya, 1985 Piltene 30 borehole 355.3 - 357.1
- Modzalevskaya, 1985 Piltene 31 borehole 368.15 - 368.15
- Modzalevskaya, 1985 Kolka 54 borehole 208.3 - 208.3