PaleoDB taxon number: 364720
Alternative combinations: Gadikao concentrica, Spinomarginifera concentrica
Full reference: W. H. He and G. R. Shi. 2008. Taxonomic names, in A new brachiopod fauna from the Early to Middle Permian of southern Qinghai Province, northwest China. Journal of Paleontology 82(4):811-822
Type specimen: D-1f-4 (China University of Geosciences, Wuhan). Its type locality is Danglangzhai D1, Member 1, which is in a Kungurian marine sandstone in the Gadikao Formation of China.
Average measurements (in mm): valve 13.6 x 18.1