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. 2022 Jun 23;12:8292. doi: 10.1038/s41598-022-12269-3

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

PMC Copyright notice

Images and reconstruction of the V. rhodanica holotype (MNHN.B.74247) acquired using PPC-SRµCT (voxel size: 12.64 µm), at the ESRF (Grenoble, France). (a) Photograph (P. Loubry, CR2P) of the specimen showing the 3-D preservation of the mineralised soft tissue. (b) PPC-SRµCT slice showing the contrast in the grey-scale image used to segment the specimen. This contrast results from the density variation among the various mineralised tissues. (c) 3D representation showing the arm crown (arm pair I, III, IV, and V), as well as other presumed internal elements (d) 3D reconstruction of the whole specimen (e) Sagittal slice showing the profile view.