liik
Calpichitina opaca (Laufeld, 1974)
Sünonüümika
1974     Desmochitina opaca — Laufeld , lk. 79, joon. 42
1994     Densichitina opaca (Laufeld, 1974) — Nestor, V. , lk. 13-14, joon. 24:7-8
Valik taksonit käsitlevast teaduskirjandusest
Nestor, V. 2005. Chitinozoans of the Margachitina margaritana Biozone and the Llandovery-Wenlock boundary in  West Estonian drill cores.  Proceedings of the Estonian Academy of Sciences. Geology   54,   2,   87-111. DOI:10.3176/geol.2005.2.02
Nestor, V. 1994. Early Silurian chitinozoans of Estonia and North Latvia. pp. 1-163.  Estonian Academy Publishers. 
Nestor, V. 1990. Silurian chitinozoans.  Field Meeting Estonia 1990. An Excursion Guidebook, pp. 80-83.   Estonian Academy of Sciences. 
Esinemine proovides (CONOP) 
Jaagarahu puurauk : 2 proov(i)
Kaugatuma 509 puurauk : 7 proov(i)
Nagli 106 puurauk : 1 proov(i)
Ohesaare puurauk : 4 proov(i)
Ruhnu 500 puurauk : 4 proov(i)
Pulli 2 puurauk : 6 proov(i)
Tinuri 818 puurauk : 1 proov(i)
Viki puurauk : 7 proov(i)
Ventspils D-3 puurauk : 4 proov(i)
Suigu puurauk : 1 proov(i)
Pärnu-Jaagupi puurauk : 2 proov(i)
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Klassifikatsioon
| organismirühm | Biota | 
| riik | Animalia | 
| klass | Chitinozoa | 
| selts | Operculatifera | 
| sugukond | Desmochitinidae | 
| alamsugukond | Desmochitininae | 
| perekond | Calpichitina | 
| liik | acollaris | 
| complanata | |
| densa | |
| gregaria | |
| hemsiensis | |
| lata | |
| lecaniella | |
| muldiensis | |
| opaca | |
| squamosa | |
| velata | 
Levik kirjandusandmetel
- Nestor, V., 1994a Ohesaare puurauk Jaani lade
- Nestor, V., 2005 Viki puurauk Adavere lade
- Laufeld, 1974a Buske, Gotland Wenlock