Traits taxon details
original description
Ljaschenko, A. I. (1973). Brachiopods and stratigraphy of the Lower Frasnian beds of southern Timan and the Volga–Ural oil-and-gas-bearing province. <em>Tr. Vsesoyuzn. Nauchno-Issled. Geol. Nedt. Inst.</em> 134: 1-278. [details]
basis of record
Oleneva, N. V. (2006). Systematics and shell microstructure of the spiriferid genera Echinospirifer and Komispirifer from the Upper Devonian of southern Timan. <em>Paleontological Journal.</em> 40(1): 55-65., available online at https://doi.org/10.1134/s0031030106010060 [details] Available for editors
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