Traits taxon details
original description
Fredericks, G. N. (1926). Tablitsa dlya opredeleniya rodov semeistva Spiriferidae King [Table for determination of the genera of the family Spiriferidae King]. <em>Akademiya Nauk SSSR, Izvestiya (series 6).</em> 20(5-6): 393-422, 1 plate. [details]
basis of record
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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