Bears, cats, mustelids, hyenas, dogs and other Carnivora now occupy the former creodont niches. Archaic mammals filled the world such as creodonts (extinct carnivores, unrelated to existing Carnivora). Even Carnivora like the meerkat, and marsupials, are burrowers. Miacids are thought to have evolved into the modern carnivorous mammals of the order Carnivora. Pinnipedia was historically considered its own suborder under Carnivora. Pinnipeds belong to the order Carnivora and the suborder Caniformia (known as dog-like carnivorans). There are also many carnivorous species that are not members of Carnivora. Carnivoramorpha are a clade of mammals that includes the modern order Carnivora. Bears are large mammals in the order Carnivora. The bears form a clade within the Carnivora. Feliformia stands in contrast to the other suborder of Carnivora, Caniformia (also Canoidea, "dog-like" carnivorans). The walrus is a mammal in the order Carnivora. Miacoids were a group of paraphyletic taxa believed to be basal to Carnivora. All members of Carnivora (except hyenas) have a baculum. It is one of the northernmost records of Pleistocene carnivora in Eurasia.