Species
Baerocrinus ungerni Volborth, 1864
Synonymy list
1859     Homocrinus dipentas — Eichwald 
1864     Baerocrinus Ungerni — Volborth , pp. 178, fig. 1
1865     Hom. dip. — Eichwald , pp. 160
1865     Baer. Ung. — Volborth , pp. 442
1866     Hom. dip.  — Eichwald , pp. 149-161, fig. 8:6
1867     Baer. Ungerni Volborth — Grewingk , pp. 109, fig. 2a-2g
1970     Baerocrinus ungerni Volborth — Rõõmusoks , pp. 124
1981     Baerocrinus ungerni Grew. — Arendt , pp. 164
1985     Baerocrinus ungerni Volborth — Rozhnov , pp. 4, fig. text fig. 1
2002     Baerocrinus ungerni Volborth — Rozhnov , pp. 585, fig. text fig. 44
Selection of related publications
Rõõmusoks, A. 1970. Stratigraphy of the Viruan Series (Middle Ordovician) in Northern Estonia, I. pp. 1-346.  Valgus. 
Regnéll, G. 1948. Swedish Hybocrinida (Crinoidea Inadunata Disparata; Ordovician-Lower Silurian).  Arkiv För Zoologi   40 A,   9,   1-27.
Grewingk, C. 1868. Ueber Hoplocrinus dipentas und Baerocrinus Ungerni.  Archiv für die Naturkunde Liv-, Ehst- und Kurlands   4,   1,   100-114.
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Echinodermata | 
| Subphylum | Pelmatozoa | 
| Class | Crinoidea | 
| Subclass | Hybocrinea | 
| Order | Hybocrinida | 
| Family | Baerocrinidae | 
| Genus | Baerocrinus | 
| Species | parvus | 
| ungerni | 
References based on distribution
- Grewingk, 1868c Erra Kukruse Stage
 - Rõõmusoks, 1970a Erra Uhaku Stage
 - Regnéll, 1948c Uhaku Stage