Traits name details
original description
Varyukhina, L. M.; Kanev, G. P.; Koloda, N. A.; Molin, V. A.; Fefilova, L. A. (1981). Korrelyatsiya raznofatsial'nykh razrezov verkhney permi severa yevropeyskoy chasti SSSR [Correlation of different facies sections of the Upper Permian in the north of the European part of the USSR]. Nauka, Leningrad, 160 pp. page(s): 159, pl. 23, fig. 8 [details]
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