Mizens, L. I.; Rzhonsnitskaya, M. A. (1979). The subfamily Punctatrypinae (Brachiopoda), its generic composition, distribution and evolution. Paleontologicheskiy Zhurnal. 13(3): 57-71.
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Mizens, L. I.; Rzhonsnitskaya, M. A.
1979
The subfamily Punctatrypinae (Brachiopoda), its generic composition, distribution and evolution