<p dir="ltr">Micro-CT scan dataset uploaded as supplementary materials for the manuscript entitled: <i>Marine snow fuels an opportunistic small food web in the Late Ordovician Soom Shale Lagerstätte</i>. Manuscript in press - September 2025. (Nature Ecology and Evolution Manuscript number: NATECOLEVOL-24103054A).</p><p dir="ltr">Four micro-CT scans of mudrock core from the Cedarberg Formation (Cape Supergroup, South Africa) containing fossilised marine snow, dust aggregates and trace fossils of meiofaunal marine benthic organisms (Nematodes and Foraminifera). Micro-CT scan data consists of TIFF images and associated acquisition files.</p>