Supplemental Information Data files S1-S13

Data files S1-S13. Microfocus X-ray Computed Tomography cross-sectional images of 13 selected radiolarian skeletons in the western Arctic Ocean. The CT-scanned 3D images can be visualized by 3D image viewer Molcer Plus (http://www.white-rabbit.jp/molcerPlusE.html). Data file S1. Microfocus X-ray Computed Tomography cross-sectional images of Actinomma boreale Data file S2. Microfocus X-ray Computed Tomography cross-sectional images of Actinomma leptodermum leptodermum Data file S3. Microfocus X-ray Computed Tomography cross-sectional images of Actinommidae spp. juvenile form Data file S4. Microfocus X-ray Computed Tomography cross-sectional images of Amphimelissa setosa adult form Data file S5. Microfocus X-ray Computed Tomography cross-sectional images of Amphimelissa setosa juvenile form Data file S6. Microfocus X-ray Computed Tomography cross-sectional images of Joergensenium arcticum adult form Data file S7. Microfocus X-ray Computed Tomography cross-sectional images of Joergensenium arcticum juvenile form Data file S8. Microfocus X-ray Computed Tomography cross-sectional images of Nassellarida indet. Data file S9. Microfocus X-ray Computed Tomography cross-sectional images of Phormacantha hystrix Data file S10. Microfocus X-ray Computed Tomography cross-sectional images of Pseudodictyophimus clevei Data file S11. Microfocus X-ray Computed Tomography cross-sectional images of Pseudodictyophimus gracilipes gracilipes Data file S12. Microfocus X-ray Computed Tomography cross-sectional images of Pseudodictyophimus spp. juvenile form Data file S13. Microfocus X-ray Computed Tomography cross-sectional images of Spongotrochus glacialis数据集包含S1至S13共13个数据文件，均为北冰洋西部筛选出的13种放射虫骨骼的显微焦点X射线计算机断层扫描（Microfocus X-ray Computed Tomography）横截面图像。经CT扫描得到的三维图像可通过三维图像查看器Molcer Plus进行可视化查看，其官方网址为http://www.white-rabbit.jp/molcerPlusE.html。 各数据文件详情如下： 数据文件S1：北极星虫（Actinomma boreale）的显微焦点X射线计算机断层扫描横截面图像 数据文件S2：薄皮星根虫薄皮亚种（Actinomma leptodermum leptodermum）的显微焦点X射线计算机断层扫描横截面图像 数据文件S3：放线虫科（Actinommidae）幼体标本的显微焦点X射线计算机断层扫描横截面图像 数据文件S4：具毛双锥虫（Amphimelissa setosa）成体的显微焦点X射线计算机断层扫描横截面图像 数据文件S5：具毛双锥虫（Amphimelissa setosa）幼体的显微焦点X射线计算机断层扫描横截面图像 数据文件S6：北极约根森虫（Joergensenium arcticum）成体的显微焦点X射线计算机断层扫描横截面图像 数据文件S7：北极约根森虫（Joergensenium arcticum）幼体的显微焦点X射线计算机断层扫描横截面图像 数据文件S8：罩笼虫目（Nassellarida）未定种的显微焦点X射线计算机断层扫描横截面图像 数据文件S9：丝孢篮虫（Phormacantha hystrix）的显微焦点X射线计算机断层扫描横截面图像 数据文件S10：克利夫假网杯虫（Pseudodictyophimus clevei）的显微焦点X射线计算机断层扫描横截面图像 数据文件S11：细弱假网杯虫细弱亚种（Pseudodictyophimus gracilipes gracilipes）的显微焦点X射线计算机断层扫描横截面图像 数据文件S12：假网杯虫属（Pseudodictyophimus spp.）幼体标本的显微焦点X射线计算机断层扫描横截面图像 数据文件S13：冰海绵旋壳虫（Spongotrochus glacialis）的显微焦点X射线计算机断层扫描横截面图像