Overview
- A peer-reviewed study published in Palaeontology uses near-field optical microscopy, CT/tomographic scans and camera lucida tracings to re-examine museum specimens and confirm Praearcturus gigas is a scorpion.
- The team estimates the animal exceeded one metre in body length and had very large pedipalps about 16 centimetres long, features consistent with a large predatory lifestyle.
- Researchers identified flap-like lateral epimera and ridged limb surfaces interpreted as adaptations for partial life in water and for producing sound through stridulation.
- The paper resolves a taxonomic debate that began with an 1870s description by Henry Woodward by matching Praearcturus anatomy to the well-preserved Silurian scorpion Eramoscorpius.
- Authors say questions remain about the species’ exact time range and life history, and they highlight how modern imaging applied to old museum collections can unlock new insights and guide future fossil hunting.