original descriptionHyatt, A. (1883). Genera of fossil cephalopods. <em>Proceedings of the Boston Society of Natural History.</em> 22: 253–338., available online athttps://www.biodiversitylibrary.org/page/42025344 page(s): 275 [details]
basis of recordNiko, S.; Sone, M.; Leman, M. S. (2007). Two new species of orthocerid cephalopods from the Carboniferous Panching Limestone, West Malaysia. <em>Paleontological Research.</em> 11(4): 331-336., available online athttps://doi.org/10.2517/1342-8144(2007)11[331:tnsooc]2.0.co;2[details]