Fig. 3 in Applications and limitations of micro-XCT imaging in the studies of Permian radiolarians: A new genus with bi-polar main spines

Fig. 3. Schematic drawings on internal structure of Permian and Mesozoic spumellarians with bi-polar main spines (detailed information including source is summarized in Table 2). A, B. Protopsium. C. Pegoxystris. D. Falcispongus. E. Spongoxystris. F. Dalongicaepa Xiao and Suzuki gen. nov. G. Spongotortilispinus. H. Spongopallium. I, J. Archaeospongoprunum. K. Palaeospongurus. L. Paroertlispongus.