Species
Physotreta deformis Holmer, 1989
Synonyymit
1989     Physotreta deformis sp. nov. — Holmer , pp. 99, fig. 25; 69-71
Aiheeseen liittyvät julkaisut
Holmer, L. E. 1989. Middle Ordovician phosphatic inarticulate brachiopods from Västergötland and Dalarna, Sweden.  Fossils and Strata   26,      1-172.
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Luokittelu
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Linguliformea | 
| Class | Lingulata | 
| Order | Acrotretida | 
| Superfamily | Acrotretoidea | 
| Family | Acrotretidae | 
| Genus | Physotreta | 
| Species | deformis | 
Levinneisyys ja viitteet
- Holmer, 1989 Kårgärde, Dalarna