Traits taxon details
original description
Kobayashi T. (1933). Faunal study of the Wanwanian (basal Ordovician) series with special notes on the Ribeiridae and the Ellesmereoceroids. <em>Journal of the Faculty of Science Imperial University of Tokyo Section II Geology, Mineralogy, Geography, Seismology.</em> 3(7): 249-328. [details]
basis of record
Webers G.F., Pojeta J., Yochelson E.L. (1992). Cambrian Mollusca from the Minaret Formation, Ellsworth Mountains, West Antarctica. <em>Geological Society of America Memoir.</em> 170:181-248., available online at https://doi.org/10.1130/MEM170-p181 page(s): 206 [details]
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