Melnikova, L. M. (2010). Some ostracodes from the Gur'yanovka Formation (Upper Ordovician) of northeastern Gorny Altai. Paleontological Journal. 44(4): 399-408.
Ostracodes from the Gur’yanovka Formation (Upper Ordovician, Sandbian and Katian stages) of Gorny Altai, Russia, are studied for the first time. Some localities with fossil ostracodes of this age are described briefly. Eleven new species of the genera Ballardina, Eurychilina, Laccochilina, Bolbina, Retiprimites, Pseudozygobolbina, Bullaeferum, Soanella, Egorovella, and Allertemmysa are described and figured. The previously described species Leperditella aff. parvipunctata V. Ivanova, 1959, Grammolomatella valdari V. Ivanova et Melnikova 1977, Longidorsa? baltica Meidla, 1996, and Steusloffina cuneata (Steusloff, 1895) and ostracodes in open nomenclature, Bollia sp., Klimphores sp., Rectella sp., Longiscula sp., are only figured.