Otarioidea is a superfamily of pinnipeds that includes the families Odobenidae, Otariidae, and their stem-relatives. In the past when the pinnipeds were considered to be a polyphyletic group of marine
Odobenidae is a family of pinnipeds, of which the only extant species is the walrus. In the past, the group was much more diverse, and includes more than a dozen fossil genera.
Otarioidea
…Otarioidea is a superfamily of pinnipeds that includes the families Odobenidae (walruses), Otariidae (eared seals, such as sea lions and fur seals), and their stem-relatives. In the past when the pinnipeds were considered to be a…