Dolichophonus
Dolichophonus is an extinct genus of scorpions known from the Silurian-age Gutterford Burn Eurypterid bed, in the Pentland Hills in Scotland. It is currently considered the world's oldest known scorpion, as the older Parioscorpio named in 2020 has been found to be an unrelated arthropod. lt is sometimes referred to Palaeophonus.