Harvestmen — Opiliones — are an ancient and diverse arachnid group with a limited fossil record. Here, X-ray micro-tomography of fossils reveals two new Carboniferous harvestmen species, allowing a phylogenetic analysis of these Palaeozoic Opiliones, demonstrating similarities between the fossils and extant groups.
- Russell J. Garwood
- Jason A. Dunlop
- Mark D. Sutton