Genus
Semitreta Biernat, 1973
Selection of related publications
Holmer, L. E., Biernat, G. 2002. Lingulate brachiopods from Lower Ordovician (Tremadoc) chalcedonites, Holy Cross Mountains, Poland. Acta Palaeontologica Polonica 47, 1, 141-156.
Gorjansky, V. J. 1969. Bezzamkovye brahiopody kembrijskih i ordovikskih otloženij severo-zapada Russkoj platformy. pp. 1-176. Nedra.
List of species
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Brachiopoda |
| Subphylum | Linguliformea |
| Class | Lingulata |
| Order | Acrotretida |
| Superfamily | Acrotretoidea |
| Family | Acrotretidae |
| Genus | Acrotreta |
| Angulotreta | |
| Conotreta | |
| Cyrtonotreta | |
| Dactylotreta | |
| Ditreta | |
| Eschatelasma | |
| Eurytreta | |
| Hisingerella | |
| Linnarssonia | |
| Longipegma | |
| Neotreta | |
| Ottenbyella | |
| Physotreta | |
| Quadrisonia | |
| Semitreta | |
| Species | magna |
| maior | |
| Genus | Spondylotreta |
| Treptotreta | |
| Vandalotreta |
See also
References based on distribution
- Gorjansky, 1969 Maardu opencast mine Pakerort Stage
- Gorjansky, 1969 Türisalu cliff Pakerort Stage
- Gorjansky, 1969 Paldiski Pakerort Stage
- Holmer & Biernat, 2002 Wysoczki, Holy Cross Mountains Tremadocian