Traits taxon details
original description
Popov, L. E.; Nikitin, I. F.; Sokiran, E. V. (1999). The earliest atrypides and athyridides (Brachiopoda) from the Ordovician of Kazakhstan. <em>Palaeontology.</em> 42(4): 625-661, 4 plates. note: Originally allocated new genus to a new subfamily, Pectenospirinae, within Family Protozygidae. [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. note: Genus allocated to subfamily Spirigerininae by Williams et al. (2002) Part H Brachiopoda (revised): Volume 4, Rhynchonelliformea (part). [details]
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