👉 Megarthrus is a genus of extinct arthropod known for its large size, which was significantly larger than other arthropods. They lived during the Late Cretaceous period and are believed to have been part of the Triassic era. The size of megarthruses, with their massive bodies measuring up to 20 feet in length, is significant due to their unique adaptations that allowed them to thrive in environments where large animals were scarce.
