Gigantoscorpio

Gigantoscorpio willsi is an extinct species of scorpion which lived between 345.0million and 342.8million years ago, during the Visean age of the Carboniferous. Its type and only specimen is BMNH In. 42706a,b, In. 42707, which is a 3D body fossil of its exoskeleton found near modern-day United Kingdom. Three other specimens were previously referred to this genus, but subsequent analyses disagreed with this referral and reclassified them as indeterminate scorpions. Based on the incomplete holotype, Gigantoscorpio is initially estimated at or long, but subsequently estimated at long.