Traits taxon details
original description
Sarytcheva, T. G. (1977). Upper Paleozoic productids of Siberia and the Arctic. <em>Tr. Paleont. Inst.</em> 161: 220 pp, 27 plates. [details]
taxonomy source
Waterhouse, J. B. (2013). The evolution and classification of Productida. <em>Earthwise.</em> 10: 1-537. [details]
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