Brontoscorpio anglicus ("English thunder scorpion") was a 1-metre long aquatic scorpion that lived during the Silurian period. When alive, B. anglicus would have resembled an oversized scorpion, albeit with relatively large (for a scorpion) compound eyes; it was an important predator of its time, given that the arthropods were among the largest animals on Earth during the Silurian.