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†Urbanaspis Ivshin 1956	urn:lsid:organismnames.com:name:2802283
†Urbanaspis Ivshin 1955	urn:lsid:organismnames.com:name:2737469

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†Urbanaspis Ivshin 1956

Ivshin 1956. [Upper Cambrian trilobites of Kazakhstan Part I (The Kuyandinsky faunal horizon in the interfluve Olenty-Shiderty).] Acad Sci Kazakhstan SSR, 1956: Unpaginated

Ivshin 1955. [Eight new genera of trilobites from the Upper Cambrian of Central Kazakhstan.] Izv Acad Sci Kazakhstan SSR [Geol], 21 1955: 106-123