Traits taxon details
original description
Chao, Y. T. (1929). Carboniferous and Permian spiriferids of China. <em>Palaeontologia Sinica. Series B.</em> 11(1): 1-133, plates 1-11. [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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