Species
Cyathochitina angusta Nõlvak et Grahn, 1993
Type specimen data
Synonymy list
1993     Cyathochitina angusta sp. n. — Nõlvak & Grahn , pp. 267, fig. 3:d
Selection of related publications
Männik, P., Loydell, D. K., Nestor, V., Nõlvak, J. 2015. Integrated Upper Ordovician–lower Silurian biostratigraphy of the Grötlingbo-1 core section, Sweden.  GFF   137,   3,   226-244. DOI:10.1080/11035897.2015.1042032
Nõlvak, J. 2003. Distribution of Ordovician chitinozoans.  Estonian Geological Sections Bulletin   5,      23-25.  Geological Survey of Estonia. 
Nõlvak, J., Grahn, Y. 1993. Ordovician chitinozoan zones from Baltoscandia.  Review of Palaeobotany and Palynology   79,      245-269. DOI:10.1016/0034-6667(93)90025-P
Occurrence in samples (CONOP) 
Ketrzyn IG 1 puurauk, Poola : 3 sample(s)
Männamaa F-367 puurauk : 12 sample(s)
Mehikoorma 421 puurauk : 4 sample(s)
Orjaku puurauk : 7 sample(s)
Ruhnu 500 puurauk : 13 sample(s)
Ristiküla 174 puurauk : 2 sample(s)
Valga 10 puurauk : 5 sample(s)
Kerguta 565 puurauk : 8 sample(s)
Tartu 453 puurauk : 3 sample(s)
Viki puurauk : 3 sample(s)
Viljandi 91 puurauk : 10 sample(s)
Grötlingbo 1 puurauk, Gotland : 1 sample(s)
Proniewicze IG 1 puurauk, poola : 5 sample(s)
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Class | Chitinozoa | 
| Order | Prosomatifera | 
| Family | Lagenochitindae | 
| Subfamily | Cyathochitininae | 
| Genus | Cyathochitina | 
| Species | angusta | 
| calix | |
| campanulaeformis | |
| costata | |
| giraffa | |
| hunderumensis | |
| jagovalensis | |
| kuckersiana | |
| latipatagium | |
| patagiata | |
| regnelli | |
| sebyensis | |
| Cyathochitina? clepsydra | 
References based on distribution
- Nõlvak, 2003 Ruhnu 500 borehole Oandu Stage