original descriptionAmalitzky, W. (1892). Ueber die Anthracosien der Permformation Russlands. <em>Palaeontographica.</em> 39: 125–212., available online athttps://www.biodiversitylibrary.org/page/33297224 page(s): 182, pl. 22, figs 6-10 [details]
Present Inaccurate Introduced: alien Containing type locality