Traits taxon details
original description
Cooper, G. A. (1956). Chazyan and related brachiopods. <em>Smithsonian Miscellaneous Collections.</em> 127: 1-1245. [details]
taxonomy source
Baarli, B. G. (2021). The smooth, spire-bearing brachiopods after the terminal Ordovician extinction through lower Llandovery in the central Oslo region, Norway. <em>Journal of Paleontology.</em> 96(1): 81-111., available online at https://doi.org/10.1017/jpa.2021.72 [details]
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