Polosova, A. N. (1979). New species of fusulinids from the Carboniferous-Permian boundary beds in the Orenburg and Aktyubinsk Pre-Urals. In Rauzer-Chernousova, D. M. et al., The Carboniferous-Permian boundary in the USSR. In Wagner, R. H. et al. (eds) The Carboniferous of the USSR. Yorkshire Geological Society, publication. 4: 175-195.
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Polosova, A. N.
1979
New species of fusulinids from the Carboniferous-Permian boundary beds in the Orenburg and Aktyubinsk Pre-Urals. In Rauzer-Chernousova, D. M. et al., The Carboniferous-Permian boundary in the USSR. In Wagner, R. H. et al. (eds) The Carboniferous of the USSR