Traits taxon details
original description
Nikitin, I. F.; Popov, L. E. (1983). Middle Ordovician orthaceans and plectambonitaceans from north Priishim and the Reki Akzhar Basin in central Kazakhstan (Brachiopods). <em>Ezhegodnik Vsesoyuznogo Paleontologicheskovo Obshchestva.</em> 26: 228-247. [details]
basis of record
Popov, A. M.; Cocks, L. R. M. (2006). Late Ordovician brachiopods from the Dulankara Formation of the Chu-Ili Range, Kazakhstan: Their systematics, palaeoecology and palaeobiogeography. <em>Palaeontology.</em> 49: 247–283. [details]
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