Sobolev, D.B. (1994a) A new species of the ostracode genus Armilla from the Tournaisian of the north and subpolar Urals. Paleontologicheskiy Zhurnal 3, 136–138.
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Sobolev, D. B.
1994
A new species of the ostracode genus Armilla from the Tournaisian of the north and subpolar Urals