Traits taxon details
original description
Chao, Y. T. (1927). Productidae of China Part 1: Producti. <em>Palaeontologia Sinica, Series B.</em> 5(2): 1-244. [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: Williams et al (2000) Part H Brachiopoda (revised): Volumes 2 & 3, Linguliformea, Craniiformea, Rhynchonelliformea (part). [details]
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