Species
Parapisocrinus ollula (Angelin, 1878)
Synonymy list
1878     Pisocrinus ollula — Angelin , pp. 21, fig. 4:2
1956     Ollulacrinus ollula — Bouška , pp. 29,79,120, fig. III 15, IV 1,5-7
Selection of related publications
Angelin, N. P. 1878. Iconographica Crinoideorum in stratis Sueciae siluricis fossilium. 2. Cystidea. pp. 1-62.  Samson & Wallin. 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Echinodermata | 
| Subphylum | Pelmatozoa | 
| Class | Crinoidea | 
| Superclass | Pentacrinoidea | 
| Infraclass | Inadunata | 
| Parvclass | Disparida | 
| Order | Pisocrinida | 
| Family | Pisocrinidae | 
| Subfamily | Pisocrininae | 
| Genus | Parapisocrinus | 
| Species | ollula | 
| Subspecies | ollula |