Traits taxon details
original description
King, W. (1850). A Monograph of the Permian Fossils of England. <em>Palaeontographical Society Monograph. London.</em> 3(5): i–xxxviii + 1–258 p., 28 pl., available online at https://www.biodiversitylibrary.org/page/49947690 [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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