Traits taxon details
original description
Pander, C. H. (1830). Beiträge zur Geognosie des Russischen Reiches. <em>St. Petersburg.</em> 165 pp. [details]
taxonomy source
Popov, L. E.; Holmer, L. E. (2003). Understanding linguloid brachiopods: Obolus and Ungula as examples. <em>Carnets de Géologie / Notebooks on Geology.</em> Article 2003/06 (CG2003_A06_LEP-LEH), 13 pp. [details] Available for editors 
additional source
Emig, C. C. (2002). Tools for linguloid taxonomy: the genus Obolus (Brachiopoda) as an example. <em>Carnets de Géologie / Notebooks on Geology.</em> Article 2002/01 (CG2002_A01_CCE). note: The considerable taxonomic changes in this paper were contested by Popov & Holmer (2003), therefore it is not followed here. [details]
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