Fig. 4 in Silicified and phosphatized Tianzhushania, spheroidal microfossils of possible animal origin from the Neoproterozoic of South China

Fig. 4. Tianzhushania in thin−section of phosphorites from the Weng'an area. A. Tianzhushania ornata (Xiao and Knoll, 2000) comb. nov., MESIG 10008 (42.1/98.2), cross−section view of specimen lacking the surrounding multilamellar outer covering (arrow in A1 shows position of A2); A2, close−up of A1, showing contour of prominences. B. Tianzhushania sp., MESIG 10008 (59.7/96.2), cross−section view of surface tubercles. C. Tianzhushania sp., MESIG 10007 (19.1/84.3), equatorial view of the tubercular wall.