Traits taxon details
original description
Cooper, G. A. (1956). Chazyan and related brachiopods. <em>Smithsonian Miscellaneous Collections.</em> 127: 1-1245. [details] Available for editors 
additional source
Congreve, C. R.; Krug, A. Z.; Patzkowsky, M. E. (2015). Phylogenetic revision of the Strophomenida, a diverse and ecologically important Palaeozoic brachiopod order. <em>Palaeontology.</em> 58(4): 743-758., available online at https://doi.org/10.1111/pala.12177 [details]
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