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redescription

Poyarkov, B. V.; Skvortsov, V. P. (1979). О методике выделения локазпиболей и локабизон (на примере нижнего карбона Тянь-Шаня) - On methodological segregation of local epiboles and local biozones (exemplified by the Early Carboniferous of Tien Shan). In: Paleontologiya i stratigrafiya Dalnego Vostoka (Palaeontology and stratigraphy of Far East). <em>Akademiya Nauk SSR Dalnevostochnyi Nauchnyi Tsentr, Dalnevostochnyi Geologicheskii Institut, Vladivostok.</em> 5-27.

original description