Species
Strophomena (Keilamena) occidens (Oraspõld, 1956)
Type specimen data
Synonymy list
1845     Orthis asmusi — Verneuil , pp. 191, fig. 10: 17
1956     Actinomena occidens Männil (in coll.) — Oraspõld , pp. 59, fig. 3: 7-9; pl. 4: 1
1993     Keilamena occidens (Männil) — Rõõmusoks , pp. 114, fig. 3: 1-5
2000     Strophomena (Keilamena) occidens (Männil); — Cocks et Rong , pp. 220, fig. 135, 3a-c
2004     Keilamena occidens (Oraspõld, 1956) — Rõõmusoks , pp. 14, fig. 1: 8-12
Selection of related publications
Rõõmusoks, A. 2004. Ordovician strophomenoid brachiopods of northern Estonia.  Fossilia Baltica 3, pp. 1-151.   Tartu Ülikooli geoloogia Instituut. 
Kaesler,  R. L. (ed) 2000. Treatise on Invertebrate Paleontology. Part H. Brachiopoda, Revised. Volume 2: Linguliformea, Craniiformea, and Rhynchonelliformea (part). pp. 1-423.  University of Kansas Paleontological Institute. 
Rõõmusoks, A. 1993. Some brachiopod genera of the subfamily Strophomeninae from the Ordovician of Estonia.  Proceedings of the Estonian Academy of Sciences. Geology   42,   3,   110-117. DOI:10.3176/geol.1993.3.02
Oraspõld, A. L. 1956. New brachiopods from the Jõhvi, Keila and Vasalemma stages.  ENSV TA Geoloogia Instituudi Uurimused   I,      41-67.
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Classification
| Organism group | Biota | 
| Kingdom | Animalia | 
| Phylum | Brachiopoda | 
| Subphylum | Rhynchonelliformea | 
| Class | Strophomenata | 
| Order | Strophomenida | 
| Superfamily | Strophomenoidea | 
| Family | Strophomenidae | 
| Subfamily | Strophomeninae | 
| Genus | Strophomena | 
| Subgenus | (Keilamena) | 
| Species | norvegica | 
| occidens | 
References based on distribution
- Oraspõld, 1956 Keila quarry Keila Stage
- Rõõmusoks, 2004 Kulna Keila Stage
- Rõõmusoks, 2004 Jälgimäe Keila Stage