Rzhonsnitskaya, M. A.; Markovskii, B. P.; Yudina, Y. A.; & Sokiran, E. V. (1998). Late Frasnian Atrypida (Brachiopoda) from the South Urals, South Timan and Kuznetsk Basin (Russia). Acta Palaeontologica Polonica. 43(2): 305-344.
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Rzhonsnitskaya, M. A.; Markovskii, B. P.; Yudina, Y. A.; & Sokiran, E. V.
1998
Late Frasnian Atrypida (Brachiopoda) from the South Urals, South Timan and Kuznetsk Basin (Russia)