Subgenus
Atrypoidea (Atrypoidea) Mitchell et Dun, 1920
Selection of related publications
Copper, P. 2004. Silurian (Late Llandovery-Ludlow) Atrypid Brachiopods from Gotland, Sweden, and Welsh Borderlands, Great Britain. pp. 1-219. DOI:10.1139/9780660190112
Rubel, M., Musteikis, P., Popov, L. 1984. Sistematicheskii spisok brahiopod silura Pribaltiki [Систематический список брахиопод силура Прибалтики]. pp. 1-36.  Eesti Teaduste Akadeemia. 
Copper, P. 1977. The late Silurian brachiopod genus Atrypoidea.  GFF   99,   1,   10-26. DOI:10.1080/11035897709454979
List of species
1. Atrypoidea (Atrypoidea) hemsea Copper, 2004 | Ludlow
2. Atrypoidea (Atrypoidea) prunum (Dalman, 1828) | Kuressaare Stage
3. Atrypoidea (Atrypoidea) saaremaaensis Copper et Rubel, 1977 | Kuressaare Stage
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Rhynchonellata | 
| Order | Atrypida | 
| Suborder | Lissatrypidina | 
| Superfamily | Lissatrypoidea | 
| Family | Lissatrypidae | 
| Genus | Eisaella | 
| Lissatrypa | |
| Meifodia | |
| Thulatrypa | |
| Subgenus | Atrypoidea (Atrypoidea) | 
| Species | hemsea | 
| prunum | |
| saaremaaensis | |
| sulcata |