Eurasian beaver
Eurasian beavers are one of the largest living species of rodents and are the largest rodent native to Eurasia. They weigh around . In Norway, adult males average while females average , while another study found adults from the same country to average . By the average weights known, the Eurasian beaver appears to be the world's second heaviest rodent behind the capybara, but averaging slightly larger and heavier than the North American beaver. While the largest specimen confirmed on record weighed , the Smithsonian has reported that this species can exceptionally exceed . Typically, the head-and-body length is and the tail length is .
Telicomys
With a length of more than in "T. gigantissimus", it contains two or three of the largest rodents that ever lived, along with "Phoberomys", "Josephoartigasia", and the giant beaver. It is part of the same South American radiation of rodents as both "Phoberomys" and the modern capybara, which is the largest living rodent, reaching lengths of up to . The closest living relative to "Telicomys" is the pacarana.