Family
Xenambonitidae Cooper, 1956
Selection of related publications
Rubel, M. 2011. Silurian brachiopods Dictyonellida, Strophomenida, Productida, Orthotetida, Protorthida and Orthida from Estonia.  Fossilia Baltica 4, pp. 1-133.   Tartu Ülikooli geoloogia instituut. 
List of species
1. Aegiria norvegica Öpik, 1933 | Raikküla Stage
3. Chonetoidea iduna Öpik, 1933 | Upper Ordovician
4. Jonesea aknistensis (Rybnikova, 1967) | Wenlock
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Plectambonitoidea | 
| Family | Alwynellidae | 
| Bimuriidae | |
| Grorudiidae | |
| Hesperomenidae | |
| Leptellinidae | |
| Leptestiidae | |
| Plectambonitidae | |
| Sowerbyellidae | |
| Taffiidae | |
| Xenambonitidae | |
| Subfamily | Aegiromeninae | 
| Xenambonitinae | |
| Species | Uko ornata | 
 See also