Traits taxon details
original description
North, F. J. (1920). On Syringothyris Winchell and certain Carboniferous Brachiopoda referred to Spiriferina d'Orbigny. <em>The Quarterly journal of the Geological Society of London.</em> 76(2): 162-227. [details]
basis of record
Angiolini, L.; Brunton, H.; Gaetani, M. (2005). Early Permian (Asselian) brachiopods from Karakorum (Pakistan) and their palaeobiogeographical significance. <em>Palaeontology.</em> 48(1): 69-86., available online at https://doi.org/10.1111/j.1475-4983.2004.00439.x [details]
additional source
Oleneva, N. V. (2016). Devonian brachiopods of the orders Spiriferida and Spiriferinida of the European Russia and Transcaucasia: Systematics, shell microstructure, and microornament. <em>Paleontological Journal.</em> 50(11): 1207-1296. [details]
additional source
Treatise on Invertebrate Paleontology. (1997-2007). Part H revised, Brachiopoda. <em>Geological Society of America, Boulder; and University of Kansas Press, Lawrence,.</em> vol. 1-6. [details]
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