10.1594/PANGAEA.969464Titschack, JürgenJürgenTitschack0000-0001-9373-9688MARUM - Center for Marine Environmental Sciences, University BremenSchmitt, KiraKiraSchmitt0009-0000-0385-0404Baum, DanielDanielBaum0000-0003-1550-7245Büscher, Janina VanessaJanina VanessaBüscher0000-0003-2399-4020Form, ArminArminFormTimann, ChristianChristianTimannLemke, Arne-JörnArne-JörnLemkePANGAEA2026calcie separationcalice segmentationComputed TomographyDesmophyllum pertusumLophelia pertusapoly cavity segmentationEdge, startEdge, targetCoral Dendroid structure Analyzer (CoDA)POS455PoseidonDataset10.1594/PANGAEA.96957810.1109/TVCG.2026.365606610.1594/PANGAEA.969465218 data pointstext/tab-separated-valuesCreative Commons Attribution 4.0 InternationalLophelia pertusa sample POS455-A2W originates from Leksa reef, off Norway, where it was taken with the submersible Jago during Poseidon cruise POS455 (white colourmorph). The dataset contains a spreadsheet containing the (directed) edges of the colony skeleton graph related to the calices segmentation of dataset in https://doi.pangaea.de/10.1594/PANGAEA.969465. Each label in POS455-A2W_calices dataset represents a vertex in this graph. The edges are given by their start label Node ID #1 and the label of their target Node ID #2.9.379363.6076Federal Ministry of Education and Researchhttps://doi.org/10.13039/50110000234703F0655ABiological Impacts of Ocean Acidification / BIOACID IIGerman Research Foundationhttps://doi.org/10.13039/501100001659Ba5042/6-1; Ti706/6-1; project 490665120CTcoral – CyberTaxonomische Klassifizierung und morphologische Charakterisierung von Kaltwasserkorallen