Species
Ordovicidium asperum (Kjellström, 1971) emend Playford et al., 1995
Synonymy list
1971     Peteinosphaeridium asperum n. sp. — Kjellström , pp. 32, fig. 21
1995     Ordovicidium asperum (Kjellstrom, 1971) n. comb. — Playford et al. , pp. 16
Selection of related publications
Kjellström, G. 1971. Middle Ordovician microplankton from the Grötlingbo borehole no. 1 in Gotland, Sweden.  Sveriges Geologiska Undersökning   669,      5-35.
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Classification
| Organism group | Biota | 
| Protista | |
| Acritarcha | |
| Genus | Ordovicidium | 
| Species | aequifurcatum | 
| asperum | |
| elegantulum | |
| groetlingboense | |
| heteromorphicum | |
| nanofurcatum | |
| nudum | |
| paucifurcatum | 
References based on distribution
- Kjellström, 1971b Grötlingbo 1 borehole, Gotland Uhaku Stage
Occurrence in samples