Species
Iru concava (Pahlen, 1877)
Synonymy list
1877     Orthisina concava sp. nov. — Pahlen , pp. 17, fig. 1: 6-11
1934     Iru concava (Pahlen, 1877) — Öpik , pp. 89-91, fig. 37: 12-15b; 38: 1-6b
1949     Iru concava (Pahlen, 1877) — Lesnikova , pp. 210, fig. 37: 12-15b; 38: 1-6b 
1960     Iru concava (Pahlen, 1877)  — Alichova , fig. 17: 8-10
2000     Iru concava (Pahlen, 1877) — Rubel et Wright , pp. 701, fig. 596, 1a-c
Selection of related publications
Öpik, A. 1934. Über Klitamboniten.  Acta et Commentationes Universitatis Tartuensis   XXVI,   5,   1-239.  K. Mattiesen. 
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Billingsellida | 
| Suborder | Clitambonitidina | 
| Superfamily | Clitambonitoidea | 
| Family | Clitambonitidae | 
| Genus | Iru | 
| Species | concava |