The geographic position of the type fossil locality of S. sinensis. The upper right inset shows northeast China, and the black area within is Liaoning Province. The rectangular area in the inset is shown in detail in the main map. The black dots are the major cities in the region, and the black triangle is the type locality of S. sinensis, Sanjiaochengcun, Jinxi, Liaoning, China (120°21'E, 40°58'N).
Wang et al. BMC Evolutionary Biology 2007 7:14 doi:10.1186/1471-2148-7-14