Traits taxon details
original description
Rowell, A. J. (1966). Revision of some Cambrian and Ordovician inarticulate brachiopods. <em>University of Kansas Paleontological Contributions.</em> 7: 1-36. [details]
additional source
Wei, B.; Wang, Y.; Yang, X.; Wu, W. (2023). The First Report of the Acrotretoid Brachiopod Hadrotreta from the Tsinghsutung Formation Cambrian (Series 2, Stage 4), Guizhou, South China. <em>Biology.</em> 12(1083): 1-13., available online at https://doi.org/10.3390/biology12081083 [details]
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